Go to main content

man pages section 5: File Formats

Exit Print View

Updated: Thursday, June 13, 2019
 
 

muttrc (5)

Name

muttrc - Configuration file for the Mutt Mail User Agent

Synopsis

Please see following description for synopsis

Description

muttrc(5)                        User Manuals                        muttrc(5)



NAME
       muttrc - Configuration file for the Mutt Mail User Agent

DESCRIPTION
       A  mutt  configuration  file  consists of a series of "commands".  Each
       line of the file may contain one or more commands.  When multiple  com-
       mands are used, they must be separated by a semicolon (";").

       The  hash  mark, or pound sign ("#"), is used as a "comment" character.
       You can use it to annotate your initialization file. All text after the
       comment character to the end of the line is ignored.

       Single  quotes  ("'")  and  double  quotes  (""")  can be used to quote
       strings which contain spaces or other special characters.  The  differ-
       ence between the two types of quotes is similar to that of many popular
       shell programs, namely that a single quote is used to specify a literal
       string (one that is not interpreted for shell variables or quoting with
       a backslash [see next  paragraph]),  while  double  quotes  indicate  a
       string which should be evaluated.  For example, backticks are evaluated
       inside of double quotes, but not single quotes.

       \ quotes the next character, just as in shells such as  bash  and  zsh.
       For  example,  if  want to put quotes (""") inside of a string, you can
       use "\" to force the next character to be a literal instead  of  inter-
       preted character.

       "\\"  means  to insert a literal "\" into the line.  "\n" and "\r" have
       their usual C meanings of linefeed and carriage-return, respectively.

       A "\" at the end of a line can be used to split commands over  multiple
       lines,  provided  that  the  split points don't appear in the middle of
       command names.

       It is also possible to substitute the output of a Unix  command  in  an
       initialization  file.  This is accomplished by enclosing the command in
       backticks (`command`).

       UNIX environment variables can be accessed like the way it is  done  in
       shells  like  sh and bash: Prepend the name of the variable by a dollar
       ("$") sign.

COMMANDS
       alias [-group name [...]] key address [, address [ ... ]]
       unalias [ *  | key ]

              alias defines an alias key for the given addresses. Each address
              will be resolved into either an email address (user@example.com)
              or a named email address  (User  Name  <user@example.com>).  The
              address  may  be  specified  in  either format, or in the format
              "user@example.com (User Name)".  unalias removes the alias  cor-
              responding  to  the given key or all aliases when "*" is used as
              an argument. The optional -group argument to  alias  causes  the
              aliased address(es) to be added to the named group.

       group [-group name] [-rx EXPR [ ... ]] [-addr address [ ... ]]
       ungroup [-group name ] [ * | [[-rx EXPR [ ... ]] [-addr address [ ... ]]]

              group  is  used  to  directly  add  either  addresses or regular
              expressions to the specified group or groups. The different cat-
              egories  of  arguments to the group command can be in any order.
              The flags -rx and -addr specify what the following strings (that
              cannot  begin  with a hyphen) should be interpreted as: either a
              regular expression or an email address,  respectively.   ungroup
              is  used  to  remove  addresses  or regular expressions from the
              specified group or groups. The syntax is similar  to  the  group
              command,  however the special character * can be used to empty a
              group of all of its contents.

              These address groups can  also  be  created  implicitly  by  the
              alias,  lists,  subscribe  and alternates commands by specifying
              the optional -group option.

              Once defined, these address groups can be used  in  patterns  to
              search for and limit the display to messages matching a group.

       alternates [-group name] regexp [ regexp [ ... ]]
       unalternates [ *  | regexp [ regexp [ ... ]] ]

              alternates  is  used  to  inform  mutt about alternate addresses
              where you receive mail; you can use regular expressions to spec-
              ify  alternate  addresses.   This affects mutt's idea about mes-
              sages from you, and messages  addressed  to  you.   unalternates
              removes  a regular expression from the list of known alternates.
              The -group flag causes all of the subsequent regular expressions
              to be added to the named group.

       alternative_order type[/subtype] [ ... ]
       unalternative_order [ *  | type/subtype] [...]

              alternative_order  command  permits  you  to  define an order of
              preference which is used by mutt to determine which  part  of  a
              multipart/alternative body to display.  A subtype of "*" matches
              any subtype, as does  an  empty  subtype.    unalternative_order
              removes entries from the ordered list or deletes the entire list
              when "*" is used as an argument.

       auto_view type[/subtype] [ ... ]
       unauto_view type[/subtype] [ ... ]

              This commands permits you to specify that mutt should  automati-
              cally convert the given MIME types to text/plain when displaying
              messages.  For this to work, there must be  a  mailcap(5)  entry
              for the given MIME type with the copiousoutput flag set.  A sub-
              type of "*" matches any subtype, as does an empty subtype.

       mime_lookup type[/subtype] [ ... ]
       unmime_lookup type[/subtype] [ ... ]

              This command permits you to define a list of "data" MIME content
              types  for which mutt will try to determine the actual file type
              from the file name, and not use a mailcap(5) entry given for the
              original  MIME  type.   For  instance,  you may add the applica-
              tion/octet-stream MIME type to this list.

       bind map1,map2,... key function
              This command binds the given key for the given map  or  maps  to
              the given function. Multiple maps may be specified by separating
              them with commas (no whitespace is allowed).

              Valid maps are: generic, alias, attach, browser, editor,  index,
              compose, pager, pgp, postpone, mix.

              For  more  information on keys and functions, please consult the
              Mutt Manual. Note that the function  name  is  to  be  specified
              without angle brackets.

       account-hook [!]regexp command
              This hook is executed whenever you access a remote mailbox. Use-
              ful to adjust configuration settings to different  IMAP  or  POP
              servers.

       charset-hook alias charset
              This command defines an alias for a character set.  This is use-
              ful to properly display messages which are tagged with a charac-
              ter set name not known to mutt.

       iconv-hook charset local-charset
              This command defines a system-specific name for a character set.
              This is useful when your system's iconv(3)  implementation  does
              not  understand  MIME  character set names (such as iso-8859-1),
              but instead insists on being  fed  with  implementation-specific
              character  set  names  (such as 8859-1).  In this specific case,
              you'd put this into your configuration file:

              iconv-hook iso-8859-1 8859-1

       message-hook [!]pattern command
              Before mutt displays (or formats for replying or  forwarding)  a
              message which matches the given pattern (or, when it is preceded
              by an exclamation mark, does not match the pattern),  the  given
              command  is  executed.   When multiple message-hooks match, they
              are  executed  in  the order in which they occur in the configu-
              ration file.

       folder-hook [!]regexp command
              When  mutt enters a folder which matches regexp (or, when regexp
              is preceded by an exclamation mark, does not match regexp),  the
              given command is executed.

              When  several  folder-hooks  match a given mail folder, they are
              executed in the order given in the configuration file.

       macro map key sequence [ description ]
              This command binds the given sequence of keys to the  given  key
              in  the given map or maps.  For valid maps, see bind. To specify
              multiple maps, put only a comma between the maps.

       color object foreground background [ regexp ]
       color index foreground background [ pattern ]
       uncolor index pattern [ pattern ... ]

              If your terminal supports color, these commands can be  used  to
              assign  foreground/background  combinations  to certain objects.
              Valid objects are: attachment, body, bold, error, header, hdrde-
              fault,  index,  indicator,  markers,  message,  normal,  prompt,
              quoted, quotedN, search, signature, status, tilde, tree,  under-
              line.   If the sidebar is enabled the following objects are also
              valid:  sidebar_divider,   sidebar_flagged,   sidebar_highlight,
              sidebar_indicator, sidebar_new, sidebar_spoolfile.  The body and
              header objects allow you to restrict the colorization to a regu-
              lar  expression.  The index object permits you to select colored
              messages by pattern.

              Valid colors include: white, black, green, magenta, blue,  cyan,
              yellow, red, default, colorN.

       mono object attribute [ regexp ]
       mono index attribute [ pattern ]

              For  terminals  which  don't support color, you can still assign
              attributes to objects.  Valid attributes  include:  none,  bold,
              underline, reverse, and standout.

       [un]ignore pattern [ pattern ... ]
              The  ignore  command  permits you to specify header fields which
              you usually don't wish to  see.   Any  header  field  whose  tag
              begins with an "ignored" pattern will be ignored.

              The  unignore  command permits you to define exceptions from the
              above mentioned list of ignored headers.

       lists [-group name] regexp [ regexp ... ]
       unlists regexp [ regexp ... ]
       subscribe [-group name] regexp [ regexp ... ]
       unsubscribe regexp [ regexp ... ]

              Mutt maintains two lists of mailing  list  address  patterns,  a
              list  of  subscribed  mailing lists, and a list of known mailing
              lists.  All subscribed mailing lists are  known.   Patterns  use
              regular expressions.

              The  lists  command  adds  a mailing list address to the list of
              known mailing lists.  The unlists command removes a mailing list
              from  the lists of known and subscribed mailing lists.  The sub-
              scribe command adds a mailing list to the  lists  of  known  and
              subscribed  mailing  lists.   The unsubscribe command removes it
              from the list of subscribed mailing lists. The -group flag  adds
              all of the subsequent regular expressions to the named group.

       mbox-hook [!]regexp mailbox
              When mutt changes to a mail folder which matches regexp, mailbox
              will be used as the "mbox" folder, i.e., read messages  will  be
              moved to that folder when the mail folder is left.

              The first matching mbox-hook applies.

       mailboxes filename [ filename ... ]
       unmailboxes [ * | filename ... ]

              The mailboxes specifies folders which can receive mail and which
              will be checked for new messages.  When changing folders, press-
              ing space will cycle through folders with new mail.  The unmail-
              boxes command is used to remove a file name  from  the  list  of
              folders which can receive mail.  If "*" is specified as the file
              name, the list is emptied.

       my_hdr string
       unmy_hdr field

              Using my_hdr, you can define headers which will be added to  the
              messages  you  compose.   unmy_hdr  will  remove the given user-
              defined headers.

       hdr_order header1 header2 [ ... ]
              With this command, you can specify an order in which  mutt  will
              attempt to present headers to you when viewing messages.

       save-hook [!]pattern filename
              When  a message matches pattern, the default file name when sav-
              ing it will be the given filename.

       fcc-hook [!]pattern filename
              When an outgoing message matches pattern, the default file  name
              for storing a copy (fcc) will be the given filename.

       fcc-save-hook [!]pattern filename
              This command is an abbreviation for identical fcc-hook and save-
              hook commands.

       send-hook [!]pattern command
              When composing a message matching pattern, command is  executed.
              When  multiple  send-hooks match, they are executed in the order
              in which they occur in the configuration file.

       send2-hook [!]pattern command
              Whenever a message matching pattern is changed (either by  edit-
              ing  it or by using the compose menu), command is executed. When
              multiple send2-hooks match, they are executed in  the  order  in
              which  they  occur in the configuration file.  Possible applica-
              tions include setting the $sendmail variable  when  a  message's
              from header is changed.

              send2-hook  execution  is  not triggered by use of enter-command
              from the compose menu.

       reply-hook [!]pattern command
              When replying to a message matching  pattern,  command  is  exe-
              cuted.   When  multiple  reply-hooks match, they are executed in
              the order in which they occur in the configuration file, but all
              reply-hooks  are matched and executed before send-hooks, regard-
              less of their order in the configuration file.

       crypt-hook regexp key-id
              The crypt-hook command provides a method by which you can  spec-
              ify the ID of the public key to be used when encrypting messages
              to a certain recipient.  The meaning of "key ID" is to be  taken
              broadly: This can be a different e-mail address, a numerical key
              ID, or even just an arbitrary search string.  You may use multi-
              ple  crypt-hooks  with the same regexp; multiple matching crypt-
              hooks result in the use of multiple key-ids for a recipient.

       open-hook regexp "command"
       close-hook regexp "command"
       append-hook regexp "command"

              These commands provide a way to handle compressed  folders.  The
              given  regexp  specifies  which  folders are taken as compressed
              (e.g.  "\\.gz$"). The commands tell Mutt  how  to  uncompress  a
              folder  (open-hook),  compress a folder (close-hook) or append a
              compressed mail to a compressed folder (append-hook).  The  com-
              mand  string  is the printf(3) like format string, and it should
              accept two parameters: %f, which  is  replaced  with  the  (com-
              pressed)  folder name, and %t which is replaced with the name of
              the temporary folder to which to write.

       push string
              This command adds the named string to the keyboard buffer.

       set [no|inv|&|?]variable[=value] [ ... ]
       toggle variable [ ... ]
       unset variable [ ... ]
       reset variable [ ... ]

              These commands are used  to  set  and  manipulate  configuration
              variables.

              Mutt  knows  four  basic  types  of  variables: boolean, number,
              string and quadoption.  Boolean variables  can  be  set  (true),
              unset  (false),  or  toggled. Number variables can be assigned a
              positive integer value.

              String variables consist of any number of printable  characters.
              Strings  must  be  enclosed  in quotes if they contain spaces or
              tabs.  You may also use the "C" escape sequences \n and  \t  for
              newline and tab, respectively.

              Quadoption  variables  are  used to control whether or not to be
              prompted for certain actions, or to specify a default action.  A
              value  of  yes will cause the action to be carried out automati-
              cally as if you had answered yes to the question.  Similarly,  a
              value  of  no  will cause the the action to be carried out as if
              you had answered "no." A value of ask-yes will  cause  a  prompt
              with a default answer of "yes" and ask-no will provide a default
              answer of "no."

              The reset command resets all given variables to the compile time
              defaults.   If you reset the special variable all, all variables
              will reset to their compile time defaults.

       source filename
              The given file will be evaluated as a configuration file.

       spam pattern format
       nospam pattern

              These commands define spam-detection patterns from external spam
              filters,  so  that  mutt  can  sort, limit, and search on ``spam
              tags'' or ``spam attributes'', or display them in the index. See
              the Mutt manual for details.

       unhook [ *  | hook-type ]
              This command will remove all hooks of a given type, or all hooks
              when "*" is used as an argument.  hook-type can be  any  of  the
              -hook commands documented above.

       mailto_allow header-field [ ... ]
       unmailto_allow [ * | header-field ... ]

              These  commands  allow  the  user  to modify the list of allowed
              header fields in a mailto: URL that Mutt will include in the the
              generated  message.   By  default the list contains only subject
              and body, as specified by RFC2368.

PATTERNS
       In various places with mutt, including some of the above mentioned hook
       commands, you can specify patterns to match messages.

   Constructing Patterns
       A simple pattern consists of an operator of the form "~character", pos-
       sibly followed by a parameter against which mutt is supposed  to  match
       the  object specified by this operator.  For some characters, the ~ may
       be replaced by another character to alter the behavior  of  the  match.
       These are described in the list of operators, below.

       With some of these operators, the object to be matched consists of sev-
       eral e-mail addresses.  In these cases, the object  is  matched  if  at
       least  one  of  these  e-mail  addresses matches. You can prepend a hat
       ("^") character to such a pattern to indicate that all  addresses  must
       match in order to match the object.

       You  can  construct  complex patterns by combining simple patterns with
       logical operators.  Logical AND is specified  by  simply  concatenating
       two  simple patterns, for instance "~C mutt-dev ~s bug".  Logical OR is
       specified by inserting a vertical bar ("|") between two  patterns,  for
       instance  "~C  mutt-dev | ~s bug".  Additionally, you can negate a pat-
       tern by prepending a bang ("!") character.  For logical  grouping,  use
       braces ("()"). Example: "!(~t mutt|~c mutt) ~f elkins".

   Simple Patterns
       Mutt understands the following simple patterns:

       ~A          all messages
       ~b EXPR     messages which contain EXPR in the message body.
       =b STRING   messages  which contain STRING in the message body. If IMAP
                   is enabled, searches for STRING on the server, rather  than
                   downloading each message and searching it locally.
       ~B EXPR     messages which contain EXPR in the whole message.
       ~c EXPR     messages carbon-copied to EXPR
       %c GROUP    messages carbon-copied to any member of GROUP
       ~C EXPR     messages either to: or cc: EXPR
       %C GROUP    messages either to: or cc: to any member of GROUP
       ~d MIN-MAX  messages with "date-sent" in a Date range
       ~D          deleted messages
       ~e EXPR     messages which contain EXPR in the "Sender" field
       %e GROUP    messages  which  contain  a member of GROUP in the "Sender"
                   field
       ~E          expired messages
       ~f EXPR     messages originating from EXPR
       %f GROUP    messages originating from any member of GROUP
       ~F          flagged messages
       ~g          PGP signed messages
       ~G          PGP encrypted messages
       ~h EXPR     messages which contain EXPR in the message header
       ~H EXPR     messages with spam tags matching EXPR
       ~i EXPR     messages which match EXPR in the "Message-ID" field
       ~k          messages containing PGP key material
       ~l          messages addressed to a  known  mailing  list  (defined  by
                   either subscribe or list)
       ~L EXPR     messages either originated or received by EXPR
       %L GROUP    messages  either  originated  or  received by any member of
                   GROUP
       ~m MIN-MAX  message in the range MIN to MAX
       ~n MIN-MAX  messages with a score in the range MIN to MAX
       ~N          new messages
       ~O          old messages
       ~p          messages addressed to you (as defined by alternates)
       ~P          messages from you (as defined by alternates)
       ~Q          messages which have been replied to
       ~r MIN-MAX  messages with "date-received" in a Date range
       ~R          read messages
       ~s EXPR     messages having EXPR in the "Subject" field.
       ~S          superseded messages
       ~t EXPR     messages addressed to EXPR
       ~T          tagged messages
       ~u          messages addressed to a subscribed mailing list (defined by
                   subscribe commands)
       ~U          unread messages
       ~v          message is part of a collapsed thread.
       ~V          cryptographically verified messages
       ~x EXPR     messages  which  contain  EXPR  in the "References" or "In-
                   Reply-To" field
       ~X MIN-MAX  messages with MIN - MAX attachments
       ~y EXPR     messages which contain EXPR in the "X-Label" field
       ~z MIN-MAX  messages with a size in the range MIN to MAX
       ~=          duplicated messages (see $duplicate_threads)
       ~$          unreferenced message (requires threaded view)
       ~(PATTERN)  messages in threads containing messages matching a  certain
                   pattern,  e.g.  all  threads  containing messages from you:
                   ~(~P)
       ~<(PATTERN) messages  whose  immediate  parent  matches  PATTERN,  e.g.
                   replies to your messages: ~<(~P)
       ~>(PATTERN) messages  having  an immediate child matching PATTERN, e.g.
                   messages you replied to: ~>(~P)

       In the above, EXPR is a regular expression.

       With the ~d, ~m, ~n, ~r, ~X, and ~z operators,  you  can  also  specify
       ranges in the forms <MAX, >MIN, MIN-, and -MAX.

       With  the  ~z operator, the suffixes "K" and "M" are allowed to specify
       kilobyte and megabyte respectively.

   Matching dates
       The ~d and ~r operators are used to match date ranges, which are inter-
       preted to be given in your local time zone.

       A  date  is  of  the  form DD[/MM[/[cc]YY]], that is, a two-digit date,
       optionally followed by a two-digit month, optionally followed by a year
       specifications.  Omitted fields default to the current month and year.

       Mutt  understands  either  two or four digit year specifications.  When
       given a two-digit year, mutt will interpret  values  less  than  70  as
       lying in the 21st century (i.e., "38" means 2038 and not 1938, and "00"
       is interpreted as 2000), and values greater than  or  equal  to  70  as
       lying in the 20th century.

       Note  that  this  behavior  is Y2K compliant, but that mutt does have a
       Y2.07K problem.

       If a date range consists of a single date,  the  operator  in  question
       will  match  that  precise  date.  If the date range consists of a dash
       ("-"), followed by a date, this range will match any date before and up
       to  the  date  given.  Similarly, a date followed by a dash matches the
       date given and any later point of time.   Two  dates,  separated  by  a
       dash, match any date which lies in the given range of time.

       You  can  also  modify  any absolute date by giving an error range.  An
       error range consists of one of the characters +, -, *,  followed  by  a
       positive  number, followed by one of the unit characters y, m, w, or d,
       specifying a unit of years, months, weeks, or days.   +  increases  the
       maximum  date  matched  by  the given interval of time, - decreases the
       minimum date matched by the given interval of time, and * increases the
       maximum date and decreases the minimum date matched by the given inter-
       val of time.  It is possible to  give  multiple  error  margins,  which
       cumulate.  Example: 1/1/2001-1w+2w*3d

       You  can  also specify offsets relative to the current date.  An offset
       is specified as one of the characters <, >, =, followed by  a  positive
       number,  followed  by  one  of  the  unit  characters y, m, w, or d.  >
       matches dates which are older than the specified  amount  of  time,  an
       offset  which  begins with the character < matches dates which are more
       recent than the specified amount of time, and an  offset  which  begins
       with  the  character  =  matches points of time which are precisely the
       given amount of time ago.

CONFIGURATION VARIABLES
       abort_nosubject
              Type: quadoption
              Default: ask-yes

              If set to yes, when composing messages and no subject  is  given
              at  the  subject prompt, composition will be aborted.  If set to
              no, composing messages with no  subject  given  at  the  subject
              prompt will never be aborted.



       abort_unmodified
              Type: quadoption
              Default: yes

              If  set to yes, composition will automatically abort after edit-
              ing the message body if no changes are made to  the  file  (this
              check  only happens after the first edit of the file).  When set
              to no, composition will never be aborted.



       alias_file
              Type: path
              Default: "~/.muttrc"

              The default file in which to save aliases created by  the  <cre-
              ate-alias>  function.  Entries added to this file are encoded in
              the character set specified by $config_charset if it is  set  or
              the current character set otherwise.

              Note:  Mutt  will  not  automatically source this file; you must
              explicitly use the "source" command for it  to  be  executed  in
              case this option points to a dedicated alias file.

              The  default  for this option is the currently used muttrc file,
              or "~/.muttrc" if no user muttrc was found.



       alias_format
              Type: string
              Default: "%4n %2f %t %-10a   %r"

              Specifies the format of the data displayed for the "alias" menu.
              The following printf(3)-style sequences are available:
              %a     alias name
              %f     flags - currently, a "d" for an alias marked for deletion
              %n     index number
              %r     address which alias expands to
              %t     character  which  indicates  if  the  alias is tagged for
                     inclusion


       allow_8bit
              Type: boolean
              Default: yes

              Controls whether 8-bit data is converted to 7-bit  using  either
              Quoted- Printable or Base64 encoding when sending mail.



       allow_ansi
              Type: boolean
              Default: no

              Controls whether ANSI color codes in messages (and color tags in
              rich text messages) are to be interpreted.  Messages  containing
              these codes are rare, but if this option is set, their text will
              be colored accordingly. Note that this may override  your  color
              choices,  and  even  present a security problem, since a message
              could include a line like


              [-- PGP output follows ...


              and give it the same color as your attachment  color  (see  also
              $crypt_timestamp).



       arrow_cursor
              Type: boolean
              Default: no

              When  set,  an arrow ("->") will be used to indicate the current
              entry in menus instead of highlighting the whole line.  On  slow
              network  or  modem  links this will make response faster because
              there is less that has to be redrawn on the screen  when  moving
              to the next or previous entries in the menu.



       ascii_chars
              Type: boolean
              Default: no

              If  set,  Mutt  will  use plain ASCII characters when displaying
              thread and attachment trees, instead of the default ACS  charac-
              ters.



       askbcc
              Type: boolean
              Default: no

              If set, Mutt will prompt you for blind-carbon-copy (Bcc) recipi-
              ents before editing an outgoing message.



       askcc
              Type: boolean
              Default: no

              If set, Mutt will prompt you  for  carbon-copy  (Cc)  recipients
              before editing the body of an outgoing message.



       assumed_charset
              Type: string
              Default: ""

              This  variable  is  a colon-separated list of character encoding
              schemes for  messages  without  character  encoding  indication.
              Header  field  values and message body content without character
              encoding indication would be assumed that they  are  written  in
              one of this list.  By default, all the header fields and message
              body without  any  charset  indication  are  assumed  to  be  in
              "us-ascii".

              For example, Japanese users might prefer this:


              set assumed_charset="iso-2022-jp:euc-jp:shift_jis:utf-8"


              However, only the first content is valid for the message body.



       attach_charset
              Type: string
              Default: ""

              This  variable  is  a colon-separated list of character encoding
              schemes for text file attachments. Mutt  uses  this  setting  to
              guess which encoding files being attached are encoded in to con-
              vert them to a proper character set given in $send_charset.

              If unset, the value of $charset will be used instead.  For exam-
              ple,  the  following  configuration would work for Japanese text
              handling:


              set attach_charset="iso-2022-jp:euc-jp:shift_jis:utf-8"


              Note: for Japanese users, "iso-2022-*" must be put at  the  head
              of the value as shown above if included.



       attach_format
              Type: string
              Default: "%u%D%I %t%4n %T%.40d%> [%.7m/%.10M, %.6e%?C?, %C?, %s] "

              This  variable  describes  the  format of the "attachment" menu.
              The following printf(3)-style sequences are understood:
              %C     charset
              %c     requires charset conversion ("n" or "c")
              %D     deleted flag
              %d     description (if none, falls back to %F)
              %e     MIME content-transfer-encoding
              %F     filename in content-disposition header  (if  none,  falls
                     back to %f)
              %f     filename
              %I     disposition ("I" for inline, "A" for attachment)
              %m     major MIME type
              %M     MIME subtype
              %n     attachment number
              %Q     "Q", if MIME part qualifies for attachment counting
              %s     size
              %t     tagged flag
              %T     graphic tree characters
              %u     unlink (=to delete) flag
              %X     number  of  qualifying  MIME  parts  in this part and its
                     children (please see the "attachments" section for possi-
                     ble speed effects)
              %>X    right justify the rest of the string and pad with charac-
                     ter "X"
              %|X    pad to the end of the line with character "X"
              %*X    soft-fill with character "X" as pad

              For an explanation of "soft-fill", see the  $index_format  docu-
              mentation.



       attach_sep
              Type: string
              Default: "\n"

              The separator to add between attachments when operating (saving,
              printing, piping, etc) on a list of tagged attachments.



       attach_split
              Type: boolean
              Default: yes

              If this variable is unset,  when  operating  (saving,  printing,
              piping, etc) on a list of tagged attachments, Mutt will concate-
              nate the attachments and  will  operate  on  them  as  a  single
              attachment.  The  $attach_sep  separator  is  added  after  each
              attachment. When set, Mutt will operate on the  attachments  one
              by one.



       attribution
              Type: string
              Default: "On %d, %n wrote:"

              This  is  the  string that will precede a message which has been
              included  in  a  reply.   For  a   full   listing   of   defined
              printf(3)-like sequences see the section on $index_format.



       attribution_locale
              Type: string
              Default: ""

              The  locale  used by strftime(3) to format dates in the attribu-
              tion string.  Legal values are the strings your  system  accepts
              for the locale environment variable $LC_TIME.

              This variable is to allow the attribution date format to be cus-
              tomized by recipient or folder using hooks.   By  default,  Mutt
              will  use  your  locale  environment, so there is no need to set
              this except to override that default.



       auto_tag
              Type: boolean
              Default: no

              When set, functions in the index menu  which  affect  a  message
              will be applied to all tagged messages (if there are any).  When
              unset, you must first use the <tag-prefix>  function  (bound  to
              ";"  by  default)  to make the next function apply to all tagged
              messages.



       autoedit
              Type: boolean
              Default: no

              When set along with $edit_headers, Mutt will  skip  the  initial
              send-menu  (prompting  for subject and recipients) and allow you
              to immediately begin editing the  body  of  your  message.   The
              send-menu  may  still be accessed once you have finished editing
              the body of your message.

              Note: when this option is set, you cannot  use  send-hooks  that
              depend  on  the recipients when composing a new (non-reply) mes-
              sage, as the initial list of recipients is empty.

              Also see $fast_reply.



       beep
              Type: boolean
              Default: yes

              When this variable is set, mutt will beep when an error occurs.



       beep_new
              Type: boolean
              Default: no

              When this variable is set, mutt will beep whenever it  prints  a
              message  notifying  you of new mail.  This is independent of the
              setting of the $beep variable.



       bounce
              Type: quadoption
              Default: ask-yes

              Controls whether you will be asked to confirm bouncing messages.
              If  set  to yes you don't get asked if you want to bounce a mes-
              sage. Setting this variable to no is not generally  useful,  and
              thus not recommended, because you are unable to bounce messages.



       bounce_delivered
              Type: boolean
              Default: yes

              When  this variable is set, mutt will include Delivered-To head-
              ers when bouncing messages.  Postfix users  may  wish  to  unset
              this variable.



       braille_friendly
              Type: boolean
              Default: no

              When  this  variable  is  set, mutt will place the cursor at the
              beginning  of  the  current  line  in  menus,  even   when   the
              $arrow_cursor variable is unset, making it easier for blind per-
              sons using Braille displays to follow these menus.   The  option
              is  unset  by default because many visual terminals don't permit
              making the cursor invisible.



       certificate_file
              Type: path
              Default: "~/.mutt_certificates"

              This variable specifies the  file  where  the  certificates  you
              trust are saved. When an unknown certificate is encountered, you
              are asked if you accept it or not. If you accept  it,  the  cer-
              tificate  can also be saved in this file and further connections
              are automatically accepted.

              You can also manually add CA  certificates  in  this  file.  Any
              server  certificate that is signed with one of these CA certifi-
              cates is also automatically accepted.

              Example:


              set certificate_file=~/.mutt/certificates




       charset
              Type: string
              Default: ""

              Character set your terminal uses to display  and  enter  textual
              data.  It is also the fallback for $send_charset.

              Upon  startup  Mutt  tries to derive this value from environment
              variables such as $LC_CTYPE or $LANG.

              Note: It should only be set in case Mutt isn't able to determine
              the character set used correctly.



       check_mbox_size
              Type: boolean
              Default: no

              When  this  variable  is  set, mutt will use file size attribute
              instead of access time when checking for new mail  in  mbox  and
              mmdf folders.

              This  variable  is  unset  by default and should only be enabled
              when new mail detection for these folder types is unreliable  or
              doesn't work.

              Note that enabling this variable should happen before any "mail-
              boxes" directives occur in configuration files regarding mbox or
              mmdf  folders  because  mutt  needs to determine the initial new
              mail status of such a mailbox by performing a fast mailbox  scan
              when  it  is defined.  Afterwards the new mail status is tracked
              by file size changes.



       check_new
              Type: boolean
              Default: yes

              Note: this option only affects maildir and MH style mailboxes.

              When set, Mutt will check for new mail delivered while the mail-
              box  is  open.  Especially with MH mailboxes, this operation can
              take quite some time since it involves  scanning  the  directory
              and  checking each file to see if it has already been looked at.
              If this variable is unset, no check for new  mail  is  performed
              while the mailbox is open.



       collapse_unread
              Type: boolean
              Default: yes

              When  unset,  Mutt will not collapse a thread if it contains any
              unread messages.



       compose_format
              Type: string
              Default: "-- Mutt: Compose  [Approx. msg size: %l   Atts: %a]%>-"

              Controls the format of the status line displayed  in  the  "com-
              pose"  menu.   This string is similar to $status_format, but has
              its own set of printf(3)-like sequences:
              %a     total number of attachments
              %h     local hostname
              %l     approximate size (in bytes) of the current message
              %v     Mutt version string

              See the text  describing  the  $status_format  option  for  more
              information on how to set $compose_format.



       config_charset
              Type: string
              Default: ""

              When  defined,  Mutt  will recode commands in rc files from this
              encoding to the current character set as specified  by  $charset
              and  aliases  written  to $alias_file from the current character
              set.

              Please note that if setting $charset it must be done before set-
              ting $config_charset.

              Recoding  should be avoided as it may render unconvertable char-
              acters as question  marks  which  can  lead  to  undesired  side
              effects (for example in regular expressions).



       confirmappend
              Type: boolean
              Default: yes

              When  set, Mutt will prompt for confirmation when appending mes-
              sages to an existing mailbox.



       confirmcreate
              Type: boolean
              Default: yes

              When set, Mutt will prompt for confirmation when saving messages
              to a mailbox which does not yet exist before creating it.



       connect_timeout
              Type: number
              Default: 30

              Causes  Mutt  to  timeout a network connection (for IMAP, POP or
              SMTP) after this many seconds if the connection is not  able  to
              be  established.   A  negative value causes Mutt to wait indefi-
              nitely for the connection attempt to succeed.



       content_type
              Type: string
              Default: "text/plain"

              Sets the default Content-Type for the  body  of  newly  composed
              messages.



       copy
              Type: quadoption
              Default: yes

              This  variable  controls  whether or not copies of your outgoing
              messages will be saved for later references.  Also see  $record,
              $save_name, $force_name and "fcc-hook".



       crypt_autoencrypt
              Type: boolean
              Default: no

              Setting  this  variable will cause Mutt to always attempt to PGP
              encrypt outgoing messages.  This is probably only useful in con-
              nection to the "send-hook" command.  It can be overridden by use
              of the pgp menu, when encryption is not required or  signing  is
              requested as well.  If $smime_is_default is set, then OpenSSL is
              used instead to create S/MIME messages and settings can be over-
              ridden by use of the smime menu instead.  (Crypto only)



       crypt_autopgp
              Type: boolean
              Default: yes

              This  variable  controls  whether  or not mutt may automatically
              enable  PGP   encryption/signing   for   messages.    See   also
              $crypt_autoencrypt,     $crypt_replyencrypt,    $crypt_autosign,
              $crypt_replysign and $smime_is_default.



       crypt_autosign
              Type: boolean
              Default: no

              Setting this variable will cause Mutt to always attempt to cryp-
              tographically sign outgoing messages.  This can be overridden by
              use of the pgp menu, when signing is not required or  encryption
              is  requested as well. If $smime_is_default is set, then OpenSSL
              is used instead to create S/MIME messages and  settings  can  be
              overridden  by  use  of  the smime menu instead of the pgp menu.
              (Crypto only)



       crypt_autosmime
              Type: boolean
              Default: yes

              This variable controls whether or  not  mutt  may  automatically
              enable   S/MIME   encryption/signing   for  messages.  See  also
              $crypt_autoencrypt,    $crypt_replyencrypt,     $crypt_autosign,
              $crypt_replysign and $smime_is_default.



       crypt_confirmhook
              Type: boolean
              Default: yes

              If  set, then you will be prompted for confirmation of keys when
              using the crypt-hook command.  If unset,  no  such  confirmation
              prompt  will be presented.  This is generally considered unsafe,
              especially where typos are concerned.



       crypt_opportunistic_encrypt
              Type: boolean
              Default: no

              Setting this variable will cause Mutt  to  automatically  enable
              and  disable  encryption, based on whether all message recipient
              keys can be located by Mutt.

              When this option is enabled, Mutt will enable/disable encryption
              each  time the TO, CC, and BCC lists are edited.  If $edit_head-
              ers is set, Mutt will also  do  so  each  time  the  message  is
              edited.

              While  this  is  set,  encryption can't be manually enabled/dis-
              abled.  The pgp or smime menus provide a selection to  temporar-
              ily disable this option for the current message.

              If  $crypt_autoencrypt  or $crypt_replyencrypt enable encryption
              for a message, this option will be disabled  for  that  message.
              It  can  be  manually  re-enabled  in  the  pgp  or smime menus.
              (Crypto only)



       crypt_replyencrypt
              Type: boolean
              Default: yes

              If set, automatically PGP or OpenSSL encrypt replies to messages
              which are encrypted.  (Crypto only)



       crypt_replysign
              Type: boolean
              Default: no

              If  set,  automatically  PGP or OpenSSL sign replies to messages
              which are signed.

              Note: this does not work on  messages  that  are  encrypted  and
              signed!  (Crypto only)



       crypt_replysignencrypted
              Type: boolean
              Default: no

              If  set,  automatically  PGP or OpenSSL sign replies to messages
              which are  encrypted.  This  makes  sense  in  combination  with
              $crypt_replyencrypt,  because it allows you to sign all messages
              which are automatically encrypted.  This works around the  prob-
              lem noted in $crypt_replysign, that mutt is not able to find out
              whether an encrypted message is also signed.  (Crypto only)



       crypt_timestamp
              Type: boolean
              Default: yes

              If set, mutt will include a time stamp in the lines  surrounding
              PGP  or S/MIME output, so spoofing such lines is more difficult.
              If you are using colors to mark these lines, and rely on  these,
              you may unset this setting.  (Crypto only)



       crypt_use_gpgme
              Type: boolean
              Default: no

              This variable controls the use of the GPGME-enabled crypto back-
              ends.  If it is set and Mutt was built with gpgme  support,  the
              gpgme  code for S/MIME and PGP will be used instead of the clas-
              sic code.  Note that you need to set this option in .muttrc;  it
              won't have any effect when used interactively.

              Note  that the GPGME backend does not support creating old-style
              inline (traditional)  PGP  encrypted  or  signed  messages  (see
              $pgp_autoinline).



       crypt_use_pka
              Type: boolean
              Default: no

              Controls       whether       mutt       uses       PKA      (see
              http://www.g10code.de/docs/pka-intro.de.pdf)  during   signature
              verification (only supported by the GPGME backend).



       crypt_verify_sig
              Type: quadoption
              Default: yes

              If "yes", always attempt to verify PGP or S/MIME signatures.  If
              "ask-*", ask whether or not to verify the signature.   If  "no",
              never attempt to verify cryptographic signatures.  (Crypto only)



       date_format
              Type: string
              Default: "!%a, %b %d, %Y at %I:%M:%S%p %Z"

              This  variable  controls  the  format of the date printed by the
              "%d" sequence in $index_format.  This is  passed  to  the  strf-
              time(3)  function  to process the date, see the man page for the
              proper syntax.

              Unless the first character in the string is a  bang  ("!"),  the
              month  and  week day names are expanded according to the locale.
              If the first character in the string is a bang, the bang is dis-
              carded,  and  the  month  and  week day names in the rest of the
              string are expanded in the C locale (that is in US English).



       default_hook
              Type: string
              Default: "~f %s !~P | (~P ~C %s)"

              This variable controls how "message-hook", "reply-hook",  "send-
              hook",  "send2-hook", "save-hook", and "fcc-hook" will be inter-
              preted if they are specified with only a simple regexp,  instead
              of  a  matching  pattern.   The hooks are expanded when they are
              declared, so a hook will be interpreted according to  the  value
              of this variable at the time the hook is declared.

              The  default  value matches if the message is either from a user
              matching the regular expression given, or if it is from you  (if
              the  from  address matches "alternates") and is to or cc'ed to a
              user matching the given regular expression.



       delete
              Type: quadoption
              Default: ask-yes

              Controls whether or not messages are really deleted when closing
              or  synchronizing a mailbox.  If set to yes, messages marked for
              deleting will automatically be purged without prompting.  If set
              to no, messages marked for deletion will be kept in the mailbox.



       delete_untag
              Type: boolean
              Default: yes

              If  this  option  is  set, mutt will untag messages when marking
              them for deletion.  This  applies  when  you  either  explicitly
              delete a message, or when you save it to another folder.



       digest_collapse
              Type: boolean
              Default: yes

              If this option is set, mutt's received-attachments menu will not
              show the subparts of individual messages in a  multipart/digest.
              To see these subparts, press "v" on that menu.



       display_filter
              Type: path
              Default: ""

              When  set,  specifies a command used to filter messages.  When a
              message is viewed it  is  passed  as  standard  input  to  $dis-
              play_filter,  and the filtered message is read from the standard
              output.



       dotlock_program
              Type: path
              Default: "/usr/bin/mutt_dotlock"

              Contains the path of the mutt_dotlock(8) binary to  be  used  by
              mutt.



       dsn_notify
              Type: string
              Default: ""

              This   variable  sets  the  request  for  when  notification  is
              returned.  The string consists of a  comma  separated  list  (no
              spaces!)  of  one  or  more  of  the  following: never, to never
              request notification, failure, to request notification on trans-
              mission  failure,  delay, to be notified of message delays, suc-
              cess, to be notified of successful transmission.

              Example:


              set dsn_notify="failure,delay"


              Note: when using $sendmail for delivery, you should  not  enable
              this  unless you are either using Sendmail 8.8.x or greater or a
              MTA providing a sendmail(1)-compatible interface supporting  the
              -N   option   for   DSN.  For  SMTP  delivery,  DSN  support  is
              auto-detected so that it depends on the server whether DSN  will
              be used or not.



       dsn_return
              Type: string
              Default: ""

              This  variable  controls how much of your message is returned in
              DSN messages.  It may be set to either hdrs to return  just  the
              message header, or full to return the full message.

              Example:


              set dsn_return=hdrs


              Note:  when  using $sendmail for delivery, you should not enable
              this unless you are either using Sendmail 8.8.x or greater or  a
              MTA  providing a sendmail(1)-compatible interface supporting the
              -R  option  for  DSN.  For  SMTP  delivery,   DSN   support   is
              auto-detected  so that it depends on the server whether DSN will
              be used or not.



       duplicate_threads
              Type: boolean
              Default: yes

              This variable controls  whether  mutt,  when  $sort  is  set  to
              threads, threads messages with the same Message-Id together.  If
              it is set, it will indicate that it thinks they  are  duplicates
              of each other with an equals sign in the thread tree.



       edit_headers
              Type: boolean
              Default: no

              This  option allows you to edit the header of your outgoing mes-
              sages along with the body of your message.

              Although the compose menu may have localized header labels,  the
              labels  passed to your editor will be standard RFC 2822 headers,
              (e.g. To:, Cc:, Subject:).  Headers added in  your  editor  must
              also be RFC 2822 headers, or one of the pseudo headers listed in
              "edit-header".   Mutt  will  not  understand  localized   header
              labels, just as it would not when parsing an actual email.

              Note  that changes made to the References: and Date: headers are
              ignored for interoperability reasons.



       editor
              Type: path
              Default: ""

              This variable specifies  which  editor  is  used  by  mutt.   It
              defaults  to  the  value of the $VISUAL, or $EDITOR, environment
              variable, or to the string "vi" if neither of those are set.

              The $editor string may  contain  a  %s  escape,  which  will  be
              replaced by the name of the file to be edited.  If the %s escape
              does not appear in $editor, a space and the name  to  be  edited
              are appended.

              The resulting string is then executed by running


              sh -c 'string'


              where string is the expansion of $editor described above.



       encode_from
              Type: boolean
              Default: no

              When  set,  mutt will quoted-printable encode messages when they
              contain the string "From " (note  the  trailing  space)  in  the
              beginning of a line.  This is useful to avoid the tampering cer-
              tain mail delivery and transport agents tend to do with messages
              (in  order  to  prevent tools from misinterpreting the line as a
              mbox message separator).



       entropy_file
              Type: path
              Default: ""

              The file which includes random data that is used  to  initialize
              SSL library functions.



       envelope_from_address
              Type: e-mail address
              Default: ""

              Manually  sets  the envelope sender for outgoing messages.  This
              value is ignored if $use_envelope_from is unset.



       escape
              Type: string
              Default: "~"

              Escape character to use for functions in the built-in editor.



       fast_reply
              Type: boolean
              Default: no

              When set, the initial prompt  for  recipients  and  subject  are
              skipped  when  replying  to messages, and the initial prompt for
              subject is skipped when forwarding messages.

              Note: this variable has no effect when the $autoedit variable is
              set.



       fcc_attach
              Type: quadoption
              Default: yes

              This  variable  controls  whether or not attachments on outgoing
              messages are saved along with the main body of your message.



       fcc_clear
              Type: boolean
              Default: no

              When this variable is set, FCCs will be stored  unencrypted  and
              unsigned,  even  when  the  actual  message  is encrypted and/or
              signed.  (PGP only)



       flag_safe
              Type: boolean
              Default: no

              If set, flagged messages cannot be deleted.



       folder
              Type: path
              Default: "~/Mail"

              Specifies the default location of your mailboxes.  A "+" or  "="
              at  the beginning of a pathname will be expanded to the value of
              this variable.  Note that if you change this variable (from  the
              default)  value you need to make sure that the assignment occurs
              before you use "+" or "=" for any other variables  since  expan-
              sion takes place when handling the "mailboxes" command.



       folder_format
              Type: string
              Default: "%2C %t %N %F %2l %-8.8u %-8.8g %8s %d %f"

              This  variable  allows you to customize the file browser display
              to your personal taste.  This string is similar  to  $index_for-
              mat, but has its own set of printf(3)-like sequences:
              %C     current file number
              %d     date/time folder was last modified
              %D     date/time folder was last modified using $date_format.
              %f     filename ("/" is appended to directory names, "@" to sym-
                     bolic links and "*" to executable files)
              %F     file permissions
              %g     group name (or numeric gid, if missing)
              %l     number of hard links
              %m     number of messages in the mailbox *
              %n     number of unread messages in the mailbox *
              %N     N if mailbox has new mail, blank otherwise
              %s     size in bytes
              %t     "*" if the file is tagged, blank otherwise
              %u     owner name (or numeric uid, if missing)
              %>X    right justify the rest of the string and pad with charac-
                     ter "X"
              %|X    pad to the end of the line with character "X"
              %*X    soft-fill with character "X" as pad

              For  an  explanation of "soft-fill", see the $index_format docu-
              mentation.

              * = can be optionally printed if nonzero

              %m, %n, and %N only work for monitored mailboxes.   %m  requires
              $mail_check_stats  to  be set.  %n requires $mail_check_stats to
              be set (except for IMAP mailboxes).



       followup_to
              Type: boolean
              Default: yes

              Controls whether or not the "Mail-Followup-To:" header field  is
              generated  when sending mail.  When set, Mutt will generate this
              field when you are replying to a known mailing  list,  specified
              with the "subscribe" or "lists" commands.

              This field has two purposes.  First, preventing you from receiv-
              ing duplicate copies of replies to messages which  you  send  to
              mailing lists, and second, ensuring that you do get a reply sep-
              arately for any messages sent to known lists to  which  you  are
              not subscribed.

              The  header  will contain only the list's address for subscribed
              lists, and both the list address and your own email address  for
              unsubscribed  lists.  Without this header, a group reply to your
              message sent to a subscribed list will be sent to both the  list
              and  your address, resulting in two copies of the same email for
              you.



       force_name
              Type: boolean
              Default: no

              This variable is similar to $save_name, except  that  Mutt  will
              store  a  copy  of  your outgoing message by the username of the
              address you are sending to even if that mailbox does not exist.

              Also see the $record variable.



       forward_attribution_intro
              Type: string
              Default: "----- Forwarded message from %f -----"

              This is the string that will precede a message  which  has  been
              forwarded  in  the main body of a message (when $mime_forward is
              unset).  For a full listing of defined printf(3)-like  sequences
              see the section on $index_format.  See also $attribution_locale.



       forward_attribution_trailer
              Type: string
              Default: "----- End forwarded message -----"

              This  is  the  string  that will follow a message which has been
              forwarded in the main body of a message (when  $mime_forward  is
              unset).   For a full listing of defined printf(3)-like sequences
              see the section on $index_format.  See also $attribution_locale.



       forward_decode
              Type: boolean
              Default: yes

              Controls the decoding of complex MIME messages  into  text/plain
              when  forwarding  a message.  The message header is also RFC2047
              decoded.  This variable is only used, if $mime_forward is unset,
              otherwise $mime_forward_decode is used instead.



       forward_decrypt
              Type: boolean
              Default: yes

              Controls  the  handling  of encrypted messages when forwarding a
              message.  When set, the outer layer of  encryption  is  stripped
              off.   This  variable  is  only used if $mime_forward is set and
              $mime_forward_decode is unset.  (PGP only)



       forward_edit
              Type: quadoption
              Default: yes

              This quadoption controls whether or not the  user  is  automati-
              cally  placed in the editor when forwarding messages.  For those
              who always want to forward with no modification, use  a  setting
              of "no".



       forward_format
              Type: string
              Default: "[%a: %s]"

              This  variable  controls  the  default subject when forwarding a
              message.  It uses the same format sequences as the $index_format
              variable.



       forward_quote
              Type: boolean
              Default: no

              When  set,  forwarded  messages included in the main body of the
              message (when $mime_forward  is  unset)  will  be  quoted  using
              $indent_string.



       from
              Type: e-mail address
              Default: ""

              When set, this variable contains a default from address.  It can
              be overridden using "my_hdr" (including from a "send-hook")  and
              $reverse_name.  This variable is ignored if $use_from is unset.

              This  setting  defaults to the contents of the environment vari-
              able $EMAIL.



       gecos_mask
              Type: regular expression
              Default: "^[^,]*"

              A regular expression used by mutt to parse the GECOS field of  a
              password entry when expanding the alias.  The default value will
              return the string up to the first "," encountered.  If the GECOS
              field  contains  a  string  like  "lastname, firstname" then you
              should set it to ".*".

              This can be useful  if  you  see  the  following  behavior:  you
              address  an e-mail to user ID "stevef" whose full name is "Steve
              Franklin".    If   mutt   expands   "stevef"   to    ""Franklin"
              stevef@foo.bar" then you should set the $gecos_mask to a regular
              expression that will match the whole name so  mutt  will  expand
              "Franklin" to "Franklin, Steve".



       hdrs
              Type: boolean
              Default: yes

              When  unset,  the  header  fields normally added by the "my_hdr"
              command are not created.  This variable  must  be  unset  before
              composing a new message or replying in order to take effect.  If
              set, the user defined header fields are added to every new  mes-
              sage.



       header
              Type: boolean
              Default: no

              When set, this variable causes Mutt to include the header of the
              message you are replying to into the  edit  buffer.   The  $weed
              setting applies.



       header_cache
              Type: path
              Default: ""

              This  variable points to the header cache database.  If pointing
              to a directory Mutt will contain a header  cache  database  file
              per  folder,  if  pointing  to a file that file will be a single
              global header cache. By default it is unset so no header caching
              will be used.

              Header  caching can greatly improve speed when opening POP, IMAP
              MH or Maildir folders, see "caching" for details.



       header_cache_compress
              Type: boolean
              Default: yes

              When mutt is compiled with qdbm, tokyocabinet,  or  kyotocabinet
              as  header  cache  backend,  this  option determines whether the
              database will be compressed.  Compression  results  in  database
              files  roughly  being  one fifth of the usual diskspace, but the
              decompression can result in a slower opening of cached folder(s)
              which  in  general  is still much faster than opening non header
              cached folders.



       header_cache_pagesize
              Type: string
              Default: "16384"

              When mutt is compiled with either gdbm or  bdb4  as  the  header
              cache  backend, this option changes the database page size.  Too
              large or too small values can waste space, memory, or CPU  time.
              The default should be more or less optimal for most use cases.



       header_color_partial
              Type: boolean
              Default: no

              When  set,  color header regexps behave like color body regexps:
              color is applied to the exact text matched by the regexp.   When
              unset, color is applied to the entire header.

              One  use  of  this  option  might  be to apply color to just the
              header labels.

              See "color" for more details.



       help
              Type: boolean
              Default: yes

              When set, help lines describing the bindings for the major func-
              tions  provided  by each menu are displayed on the first line of
              the screen.

              Note: The binding will not be displayed correctly if  the  func-
              tion  is  bound  to  a  sequence rather than a single keystroke.
              Also, the help line may not be updated if a binding  is  changed
              while  Mutt  is running.  Since this variable is primarily aimed
              at new users, neither of these should present a major problem.



       hidden_host
              Type: boolean
              Default: no

              When set, mutt will skip the host name part of  $hostname  vari-
              able  when  adding  the domain part to addresses.  This variable
              does not affect the generation of Message-IDs, and it  will  not
              lead to the cut-off of first-level domains.



       hide_limited
              Type: boolean
              Default: no

              When  set,  mutt will not show the presence of messages that are
              hidden by limiting, in the thread tree.



       hide_missing
              Type: boolean
              Default: yes

              When set, mutt will not show the presence of missing messages in
              the thread tree.



       hide_thread_subject
              Type: boolean
              Default: yes

              When  set,  mutt  will  not  show the subject of messages in the
              thread tree that have the same subject as their parent or  clos-
              est previously displayed sibling.



       hide_top_limited
              Type: boolean
              Default: no

              When  set,  mutt will not show the presence of messages that are
              hidden by limiting, at the top of threads in  the  thread  tree.
              Note  that  when  $hide_limited is set, this option will have no
              effect.



       hide_top_missing
              Type: boolean
              Default: yes

              When set, mutt will not show the presence of missing messages at
              the  top  of  threads  in  the  thread  tree.   Note  that  when
              $hide_missing is set, this option will have no effect.



       history
              Type: number
              Default: 10

              This variable controls the size (in  number  of  strings  remem-
              bered)  of the string history buffer per category. The buffer is
              cleared each time the variable is set.



       history_file
              Type: path
              Default: "~/.mutthistory"

              The file in which Mutt will save its history.

              Also see $save_history.



       history_remove_dups
              Type: boolean
              Default: no

              When set, all of the string history will be scanned  for  dupli-
              cates when a new entry is added.  Duplicate entries in the $his-
              tory_file will also be removed  when  it  is  periodically  com-
              pacted.



       honor_disposition
              Type: boolean
              Default: no

              When  set,  Mutt will not display attachments with a disposition
              of "attachment" inline even if it could render the part to plain
              text.  These  MIME  parts can only be viewed from the attachment
              menu.

              If unset, Mutt will render all MIME parts it can properly trans-
              form to plain text.



       honor_followup_to
              Type: quadoption
              Default: yes

              This  variable controls whether or not a Mail-Followup-To header
              is honored when group-replying to a message.



       hostname
              Type: string
              Default: ""

              Specifies the fully-qualified hostname of  the  system  mutt  is
              running  on  containing  the  host's  name and the DNS domain it
              belongs to. It is used as the domain part (after "@") for  local
              email addresses as well as Message-Id headers.

              Its  value is determined at startup as follows: the node's host-
              name is first determined by the uname(3) function.   The  domain
              is  then  looked  up using the gethostname(2) and getaddrinfo(3)
              functions.  If those calls are unable to determine  the  domain,
              the  full value returned by uname is used.  Optionally, Mutt can
              be compiled with a fixed domain name in which  case  a  detected
              one is not used.

              Also see $use_domain and $hidden_host.



       idn_decode
              Type: boolean
              Default: yes

              When set, Mutt will show you international domain names decoded.
              Note: You can use IDNs for addresses  even  if  this  is  unset.
              This variable only affects decoding. (IDN only)



       idn_encode
              Type: boolean
              Default: yes

              When set, Mutt will encode international domain names using IDN.
              Unset this if your SMTP server can handle newer (RFC 6531) UTF-8
              encoded domains. (IDN only)



       ignore_linear_white_space
              Type: boolean
              Default: no

              This option replaces linear-white-space between encoded-word and
              text to a single space to prevent the  display  of  MIME-encoded
              "Subject:" field from being divided into multiple lines.



       ignore_list_reply_to
              Type: boolean
              Default: no

              Affects  the  behavior  of the <reply> function when replying to
              messages from mailing lists (as defined by  the  "subscribe"  or
              "lists" commands).  When set, if the "Reply-To:" field is set to
              the same value  as  the  "To:"  field,  Mutt  assumes  that  the
              "Reply-To:"  field  was  set  by  the  mailing  list to automate
              responses to the list, and will ignore this field.  To direct  a
              response  to  the  mailing list when this option is set, use the
              <list-reply> function; <group-reply>  will  reply  to  both  the
              sender and the list.



       imap_authenticators
              Type: string
              Default: ""

              This  is  a  colon-delimited list of authentication methods mutt
              may attempt to use to log in to an IMAP  server,  in  the  order
              mutt should try them.  Authentication methods are either "login"
              or the right side of an IMAP "AUTH=xxx" capability string,  e.g.
              "digest-md5", "gssapi" or "cram-md5". This option is case-insen-
              sitive. If it's unset (the default) mutt will try all  available
              methods, in order from most-secure to least-secure.

              Example:


              set imap_authenticators="gssapi:cram-md5:login"


              Note:  Mutt  will only fall back to other authentication methods
              if the previous methods are unavailable. If a method  is  avail-
              able but authentication fails, mutt will not connect to the IMAP
              server.



       imap_check_subscribed
              Type: boolean
              Default: no

              When set, mutt will fetch the set  of  subscribed  folders  from
              your  server on connection, and add them to the set of mailboxes
              it polls for new mail just  as  if  you  had  issued  individual
              "mailboxes" commands.



       imap_delim_chars
              Type: string
              Default: "/."

              This  contains  the  list  of characters which you would like to
              treat as folder separators for displaying IMAP paths. In partic-
              ular  it  helps  in using the "=" shortcut for your folder vari-
              able.



       imap_headers
              Type: string
              Default: ""

              Mutt requests these header fields in  addition  to  the  default
              headers  ("Date:",  "From:",  "Subject:",  "To:",  "Cc:",  "Mes-
              sage-Id:",  "References:",  "Content-Type:",   "Content-Descrip-
              tion:",  "In-Reply-To:",  "Reply-To:",  "Lines:",  "List-Post:",
              "X-Label:") from IMAP servers before displaying the index  menu.
              You may want to add more headers for spam detection.

              Note:  This is a space separated list, items should be uppercase
              and not contain the colon, e.g. "X-BOGOSITY  X-SPAM-STATUS"  for
              the "X-Bogosity:" and "X-Spam-Status:" header fields.



       imap_idle
              Type: boolean
              Default: no

              When  set,  mutt  will attempt to use the IMAP IDLE extension to
              check for new mail in the current mailbox. Some servers (dovecot
              was  the  inspiration  for  this  option)  react badly to mutt's
              implementation. If your connection seems to freeze  up  periodi-
              cally, try unsetting this.



       imap_keepalive
              Type: number
              Default: 300

              This  variable  specifies  the maximum amount of time in seconds
              that mutt will wait before polling  open  IMAP  connections,  to
              prevent  the  server  from closing them before mutt has finished
              with them. The default is well within the RFC-specified  minimum
              amount  of  time  (30  minutes) before a server is allowed to do
              this, but in practice the RFC does get violated  every  now  and
              then.  Reduce  this  number if you find yourself getting discon-
              nected from your IMAP server due to inactivity.



       imap_list_subscribed
              Type: boolean
              Default: no

              This variable configures whether IMAP folder browsing will  look
              for only subscribed folders or all folders.  This can be toggled
              in the IMAP browser with the <toggle-subscribed> function.



       imap_login
              Type: string
              Default: ""

              Your login name on the IMAP server.

              This variable defaults to the value of $imap_user.



       imap_pass
              Type: string
              Default: ""

              Specifies the password for your IMAP account.   If  unset,  Mutt
              will   prompt   you  for  your  password  when  you  invoke  the
              <imap-fetch-mail> function or try to open an IMAP folder.

              Warning: you should only use this  option  when  you  are  on  a
              fairly  secure machine, because the superuser can read your mut-
              trc even if you are the only one who can read the file.



       imap_passive
              Type: boolean
              Default: yes

              When set, mutt will not open new IMAP connections to  check  for
              new  mail.  Mutt will only check for new mail over existing IMAP
              connections.  This is useful if you don't want to be prompted to
              user/password  pairs  on mutt invocation, or if opening the con-
              nection is slow.



       imap_peek
              Type: boolean
              Default: yes

              When set, mutt will avoid implicitly marking your mail  as  read
              whenever  you fetch a message from the server. This is generally
              a good thing, but can  make  closing  an  IMAP  folder  somewhat
              slower. This option exists to appease speed freaks.



       imap_pipeline_depth
              Type: number
              Default: 15

              Controls  the  number  of  IMAP  commands  that may be queued up
              before they are sent to the server. A  deeper  pipeline  reduces
              the  amount  of time mutt must wait for the server, and can make
              IMAP servers feel much more responsive. But not all servers cor-
              rectly  handle  pipelined  commands, so if you have problems you
              might want to try setting this variable to 0.

              Note: Changes to this variable have no effect  on  open  connec-
              tions.



       imap_poll_timeout
              Type: number
              Default: 15

              This  variable  specifies  the maximum amount of time in seconds
              that mutt will wait for a response when polling IMAP connections
              for new mail, before timing out and closing the connection.  Set
              to 0 to disable timing out.



       imap_servernoise
              Type: boolean
              Default: yes

              When set, mutt will  display  warning  messages  from  the  IMAP
              server  as  error messages. Since these messages are often harm-
              less, or generated due to configuration problems on  the  server
              which are out of the users' hands, you may wish to suppress them
              at some point.



       imap_user
              Type: string
              Default: ""

              The name of the user whose mail you intend to access on the IMAP
              server.

              This variable defaults to your user name on the local machine.



       implicit_autoview
              Type: boolean
              Default: no

              If  set  to  "yes",  mutt will look for a mailcap entry with the
              "copiousoutput" flag set for every MIME  attachment  it  doesn't
              have an internal viewer defined for.  If such an entry is found,
              mutt will use the viewer defined in that entry  to  convert  the
              body part to text form.



       include
              Type: quadoption
              Default: ask-yes

              Controls  whether or not a copy of the message(s) you are reply-
              ing to is included in your reply.



       include_onlyfirst
              Type: boolean
              Default: no

              Controls whether or not Mutt includes only the first  attachment
              of the message you are replying.



       indent_string
              Type: string
              Default: "> "

              Specifies the string to prepend to each line of text quoted in a
              message to which you are replying.  You are strongly  encouraged
              not to change this value, as it tends to agitate the more fanat-
              ical netizens.

              The value of this option is  ignored  if  $text_flowed  is  set,
              because  the  quoting  mechanism  is  strictly  defined for for-
              mat=flowed.

              This option is a format string, please see  the  description  of
              $index_format for supported printf(3)-style sequences.



       index_format
              Type: string
              Default: "%4C %Z %{%b %d} %-15.15L (%?l?%4l&%4c?) %s"

              This  variable allows you to customize the message index display
              to your personal taste.

              "Format strings" are similar to the strings used in the C  func-
              tion  printf(3)  to  format  output  (see  the man page for more
              details).  For an explanation of the %? construct, see the $sta-
              tus_format  description.  The following sequences are defined in
              Mutt:
              %a     address of the author
              %A     reply-to  address  (if  present;  otherwise:  address  of
                     author)
              %b     filename of the original message folder (think mailbox)
              %B     the list to which the letter was sent, or else the folder
                     name (%b).
              %c     number of characters (bytes) in the message
              %C     current message number
              %d     date and time of the message in the format  specified  by
                     $date_format converted to sender's time zone
              %D     date  and  time of the message in the format specified by
                     $date_format converted to the local time zone
              %e     current message number in thread
              %E     number of messages in current thread
              %f     sender  (address  +   real   name),   either   From:   or
                     Return-Path:
              %F     author name, or recipient name if the message is from you
              %H     spam attribute(s) of this message
              %i     message-id of the current message
              %l     number  of  lines  in  the  message  (does  not work with
                     maildir, mh, and possibly IMAP folders)
              %L     If an address in the "To:" or "Cc:" header field  matches
                     an address defined by the users "subscribe" command, this
                     displays "To <list-name>", otherwise the same as %F.
              %m     total number of message in the mailbox
              %M     number of hidden messages if the thread is collapsed.
              %N     message score
              %n     author's real name (or address if missing)
              %O     original save  folder  where  mutt  would  formerly  have
                     stashed  the  message: list name or recipient name if not
                     sent to a list
              %P     progress indicator for the built-in pager  (how  much  of
                     the file has been displayed)
              %r     comma separated list of "To:" recipients
              %R     comma separated list of "Cc:" recipients
              %s     subject of the message
              %S     single     character     status     of     the    message
                     ("N"/"O"/"D"/"d"/"!"/"r"/"*")
              %t     "To:" field (recipients)
              %T     the appropriate character from the $to_chars string
              %u     user (login) name of the author
              %v     first name of the author, or the recipient if the message
                     is from you
              %X     number  of attachments (please see the "attachments" sec-
                     tion for possible speed effects)
              %y     "X-Label:" field, if present
              %Y     "X-Label:" field, if present, and (1) not at  part  of  a
                     thread  tree,  (2)  at  the  top  of  a  thread,  or  (3)
                     "X-Label:"  is   different   from   preceding   message's
                     "X-Label:".
              %Z     a three character set of message status flags.  the first
                     character        is        new/read/replied         flags
                     ("n"/"o"/"r"/"O"/"N").   the second is deleted or encryp-
                     tion  flags  ("D"/"d"/"S"/"P"/"s"/"K").   the  third   is
                     either tagged/flagged ("*"/"!"), or one of the characters
                     listed in $to_chars.
              %{fmt} the date and time of the message is converted to sender's
                     time  zone, and "fmt" is expanded by the library function
                     strftime(3); a leading bang disables locales
              %[fmt] the date and time of the  message  is  converted  to  the
                     local  time  zone,  and  "fmt" is expanded by the library
                     function strftime(3); a leading bang disables locales
              %(fmt) the local date and time when the  message  was  received.
                     "fmt"  is expanded by the library function strftime(3); a
                     leading bang disables locales
              %<fmt> the current local time. "fmt" is expanded by the  library
                     function strftime(3); a leading bang disables locales.
              %>X    right justify the rest of the string and pad with charac-
                     ter "X"
              %|X    pad to the end of the line with character "X"
              %*X    soft-fill with character "X" as pad

              "Soft-fill" deserves some explanation:  Normal  right-justifica-
              tion  will  print everything to the left of the "%>", displaying
              padding and whatever lies to the right only if there's room.  By
              contrast, soft-fill gives priority to the right-hand side, guar-
              anteeing space to display it and showing padding only if there's
              still  room.  If necessary, soft-fill will eat text leftwards to
              make room for rightward text.

              Note that these expandos are  supported  in  "save-hook",  "fcc-
              hook" and "fcc-save-hook", too.



       ispell
              Type: path
              Default: "ispell"

              How to invoke ispell (GNU's spell-checking software).



       keep_flagged
              Type: boolean
              Default: no

              If  set,  read messages marked as flagged will not be moved from
              your spool mailbox to your $mbox mailbox, or as a  result  of  a
              "mbox-hook" command.



       mail_check
              Type: number
              Default: 5

              This variable configures how often (in seconds) mutt should look
              for new mail. Also see the $timeout variable.



       mail_check_recent
              Type: boolean
              Default: yes

              When set, Mutt will only notify you about new mail that has been
              received  since  the  last  time  you  opened the mailbox.  When
              unset, Mutt will notify you if any new mail exists in the  mail-
              box, regardless of whether you have visited it recently.

              When  $mark_old  is  set,  Mutt does not consider the mailbox to
              contain new mail if only old messages exist.



       mail_check_stats
              Type: boolean
              Default: no

              When set, mutt will periodically calculate message statistics of
              a mailbox while polling for new mail.  It will check for unread,
              flagged, and total message counts.  Because  this  operation  is
              more performance intensive, it defaults to unset, and has a sep-
              arate option, $mail_check_stats_interval, to control  how  often
              to update these counts.



       mail_check_stats_interval
              Type: number
              Default: 60

              When  $mail_check_stats  is  set,  this  variable configures how
              often (in seconds) mutt will update message counts.



       mailcap_path
              Type: string
              Default: ""

              This variable specifies which files to consult  when  attempting
              to display MIME bodies not directly supported by Mutt.



       mailcap_sanitize
              Type: boolean
              Default: yes

              If  set,  mutt  will  restrict  possible characters in mailcap %
              expandos to a well-defined set of safe characters.  This is  the
              safe  setting,  but  we  are not sure it doesn't break some more
              advanced MIME stuff.

              DON'T CHANGE THIS SETTING UNLESS YOU ARE REALLY  SURE  WHAT  YOU
              ARE DOING!



       maildir_header_cache_verify
              Type: boolean
              Default: yes

              Check  for Maildir unaware programs other than mutt having modi-
              fied maildir files when the header cache is in use.  This incurs
              one  stat(2)  per message every time the folder is opened (which
              can be very slow for NFS folders).



       maildir_trash
              Type: boolean
              Default: no

              If set, messages marked  as  deleted  will  be  saved  with  the
              maildir  trashed  flag  instead  of  unlinked.   Note: this only
              applies to maildir-style mailboxes.  Setting  it  will  have  no
              effect on other mailbox types.



       maildir_check_cur
              Type: boolean
              Default: no

              If  set,  mutt  will  poll both the new and cur directories of a
              maildir folder for new messages.  This might be useful if  other
              programs  interacting  with the folder (e.g. dovecot) are moving
              new messages to the  cur  directory.   Note  that  setting  this
              option  may slow down polling for new messages in large folders,
              since mutt has to scan all cur messages.



       mark_macro_prefix
              Type: string
              Default: "'"

              Prefix for macros created using mark-message.  A new macro auto-
              matically  generated  with <mark-message>a will be composed from
              this prefix and the letter a.



       mark_old
              Type: boolean
              Default: yes

              Controls whether or not mutt marks new unread messages as old if
              you  exit a mailbox without reading them.  With this option set,
              the next time you start mutt, the messages will show up with  an
              "O"  next  to  them  in the index menu, indicating that they are
              old.



       markers
              Type: boolean
              Default: yes

              Controls the display of wrapped lines in the internal pager.  If
              set,  a  "+"  marker  is  displayed  at the beginning of wrapped
              lines.

              Also see the $smart_wrap variable.



       mask
              Type: regular expression
              Default: "!^\.[^.]"

              A regular expression used in the file browser,  optionally  pre-
              ceded  by  the  not  operator "!".  Only files whose names match
              this mask will be shown. The match is always case-sensitive.



       mbox
              Type: path
              Default: "~/mbox"

              This  specifies  the  folder  into  which  read  mail  in   your
              $spoolfile folder will be appended.

              Also see the $move variable.



       mbox_type
              Type: folder magic
              Default: mbox

              The  default mailbox type used when creating new folders. May be
              any of "mbox", "MMDF", "MH" and "Maildir". This is overridden by
              the -m command-line option.



       menu_context
              Type: number
              Default: 0

              This  variable  controls the number of lines of context that are
              given when scrolling through menus. (Similar to $pager_context.)



       menu_move_off
              Type: boolean
              Default: yes

              When unset, the bottom entry of menus will never scroll up  past
              the  bottom  of  the  screen, unless there are less entries than
              lines.  When set, the bottom entry may move off the bottom.



       menu_scroll
              Type: boolean
              Default: no

              When set, menus will be scrolled up or down one  line  when  you
              attempt  to move across a screen boundary.  If unset, the screen
              is cleared and the next or previous page of  the  menu  is  dis-
              played (useful for slow links to avoid many redraws).



       message_cache_clean
              Type: boolean
              Default: no

              If  set,  mutt  will clean out obsolete entries from the message
              cache when the mailbox is synchronized. You probably  only  want
              to  set  it every once in a while, since it can be a little slow
              (especially for large folders).



       message_cachedir
              Type: path
              Default: ""

              Set this to a directory and mutt will cache copies  of  messages
              from  your  IMAP  and  POP  servers here. You are free to remove
              entries at any time.

              When setting this variable to a directory, mutt needs  to  fetch
              every  remote  message only once and can perform regular expres-
              sion searches as fast as for local folders.

              Also see the $message_cache_clean variable.



       message_format
              Type: string
              Default: "%s"

              This is the  string  displayed  in  the  "attachment"  menu  for
              attachments  of  type  message/rfc822.   For  a  full listing of
              defined printf(3)-like sequences see the section on  $index_for-
              mat.



       meta_key
              Type: boolean
              Default: no

              If  set,  forces  Mutt to interpret keystrokes with the high bit
              (bit 8) set as if the user had pressed the Esc key and  whatever
              key  remains after having the high bit removed.  For example, if
              the key pressed has an ASCII value of 0xf8, then this is treated
              as  if  the  user had pressed Esc then "x".  This is because the
              result of removing the high bit from 0xf8 is 0x78, which is  the
              ASCII character "x".



       metoo
              Type: boolean
              Default: no

              If  unset,  Mutt  will remove your address (see the "alternates"
              command) from the list of recipients when replying to a message.



       mh_purge
              Type: boolean
              Default: no

              When unset, mutt will mimic mh's  behavior  and  rename  deleted
              messages  to  ,<old  file  name> in mh folders instead of really
              deleting them. This leaves the message on disk  but  makes  pro-
              grams  reading the folder ignore it. If the variable is set, the
              message files will simply be deleted.

              This option is similar to $maildir_trash for Maildir folders.



       mh_seq_flagged
              Type: string
              Default: "flagged"

              The name of the MH sequence used for flagged messages.



       mh_seq_replied
              Type: string
              Default: "replied"

              The name of the MH sequence used to tag replied messages.



       mh_seq_unseen
              Type: string
              Default: "unseen"

              The name of the MH sequence used for unseen messages.



       mime_forward
              Type: quadoption
              Default: no

              When set, the message you are forwarding will be attached  as  a
              separate  message/rfc822  MIME  part  instead of included in the
              main body of the message.  This is useful  for  forwarding  MIME
              messages so the receiver can properly view the message as it was
              delivered to you. If you like to switch  between  MIME  and  not
              MIME  from  mail  to  mail,  set  this  variable  to "ask-no" or
              "ask-yes".

              Also see $forward_decode and $mime_forward_decode.



       mime_forward_decode
              Type: boolean
              Default: no

              Controls the decoding of complex MIME messages  into  text/plain
              when  forwarding a message while $mime_forward is set. Otherwise
              $forward_decode is used instead.



       mime_forward_rest
              Type: quadoption
              Default: yes

              When forwarding multiple attachments of a MIME message from  the
              attachment  menu,  attachments which cannot be decoded in a rea-
              sonable manner will be attached to the newly composed message if
              this option is set.



       mime_type_query_command
              Type: string
              Default: ""

              This specifies a command to run, to determine the mime type of a
              new   attachment   when    composing    a    message.     Unless
              $mime_type_query_first  is  set,  this  will  only be run if the
              attachment's extension is not found in the mime.types file.

              The string may contain a "%s", which will  be  substituted  with
              the attachment filename.  Mutt will add quotes around the string
              substituted for "%s" automatically according  to  shell  quoting
              rules, so you should avoid adding your own.  If no "%s" is found
              in the string, Mutt will append the attachment filename  to  the
              end of the string.

              The  command  should output a single line containing the attach-
              ment's mime type.

              Suggested values are "xdg-mime query filetype" or "file -bi".



       mime_type_query_first
              Type: boolean
              Default: no

              When set, the $mime_type_query_command will be  run  before  the
              mime.types lookup.



       mix_entry_format
              Type: string
              Default: "%4n %c %-16s %a"

              This  variable  describes  the  format of a remailer line on the
              mixmaster chain selection screen.  The following  printf(3)-like
              sequences are supported:
              %n     The running number on the menu.
              %c     Remailer capabilities.
              %s     The remailer's short name.
              %a     The remailer's e-mail address.


       mixmaster
              Type: path
              Default: "mixmaster"

              This  variable contains the path to the Mixmaster binary on your
              system.  It is used with various sets of  parameters  to  gather
              the  list  of  known  remailers,  and  to finally send a message
              through the mixmaster chain.



       move
              Type: quadoption
              Default: no

              Controls whether or not Mutt will move read messages  from  your
              spool  mailbox to your $mbox mailbox, or as a result of a "mbox-
              hook" command.



       narrow_tree
              Type: boolean
              Default: no

              This variable, when set, makes the thread tree narrower,  allow-
              ing deeper threads to fit on the screen.



       net_inc
              Type: number
              Default: 10

              Operations  that  expect to transfer a large amount of data over
              the network will update their progress every $net_inc kilobytes.
              If set to 0, no progress messages will be displayed.

              See also $read_inc, $write_inc and $net_inc.



       pager
              Type: path
              Default: "builtin"

              This  variable  specifies  which  pager you would like to use to
              view messages. The value "builtin" means  to  use  the  built-in
              pager,  otherwise  this  variable should specify the pathname of
              the external pager you would like to use.

              Using an external pager may have some disadvantages:  Additional
              keystrokes  are  necessary because you can't call mutt functions
              directly from the pager, and screen resizes cause  lines  longer
              than the screen width to be badly formatted in the help menu.



       pager_context
              Type: number
              Default: 0

              This  variable  controls the number of lines of context that are
              given when displaying the next or previous page in the  internal
              pager.   By  default,  Mutt will display the line after the last
              one on the screen at the top of the next page (0 lines  of  con-
              text).

              This  variable  also  specifies  the amount of context given for
              search results. If positive,  this  many  lines  will  be  given
              before a match, if 0, the match will be top-aligned.



       pager_format
              Type: string
              Default: "-%Z- %C/%m: %-20.20n   %s%*  -- (%P)"

              This  variable controls the format of the one-line message "sta-
              tus" displayed before each message in either the internal or  an
              external   pager.    The  valid  sequences  are  listed  in  the
              $index_format section.



       pager_index_lines
              Type: number
              Default: 0

              Determines the number of lines of a mini-index  which  is  shown
              when  in the pager.  The current message, unless near the top or
              bottom of the folder, will be roughly one third of the way  down
              this mini-index, giving the reader the context of a few messages
              before and after the message.  This is useful, for  example,  to
              determine  how  many  messages  remain to be read in the current
              thread.  One of the lines is reserved for the  status  bar  from
              the  index,  so  a  setting  of  6 will only show 5 lines of the
              actual index.  A value of 0 results in no index being shown.  If
              the  number  of  messages  in  the  current  folder is less than
              $pager_index_lines, then the index will only use as  many  lines
              as it needs.



       pager_stop
              Type: boolean
              Default: no

              When  set,  the internal-pager will not move to the next message
              when you are at the end of a message and invoke the  <next-page>
              function.



       pgp_auto_decode
              Type: boolean
              Default: no

              If  set,  mutt will automatically attempt to decrypt traditional
              PGP messages whenever the user performs an operation which ordi-
              narily  would  result in the contents of the message being oper-
              ated on.  For example, if the user  displays  a  pgp-traditional
              message which has not been manually checked with the <check-tra-
              ditional-pgp> function, mutt will automatically check  the  mes-
              sage for traditional pgp.



       pgp_autoinline
              Type: boolean
              Default: no

              This  option  controls  whether  Mutt generates old-style inline
              (traditional) PGP encrypted or  signed  messages  under  certain
              circumstances.   This  can be overridden by use of the pgp menu,
              when inline is not required.  The GPGME backend does not support
              this option.

              Note  that  Mutt  might  automatically use PGP/MIME for messages
              which consist of more than a single MIME part.  Mutt can be con-
              figured  to  ask  before  sending  PGP/MIME messages when inline
              (traditional) would not work.

              Also see the $pgp_mime_auto variable.

              Also note  that  using  the  old-style  PGP  message  format  is
              strongly deprecated.  (PGP only)



       pgp_check_exit
              Type: boolean
              Default: yes

              If set, mutt will check the exit code of the PGP subprocess when
              signing or encrypting.  A non-zero exit code means that the sub-
              process failed.  (PGP only)



       pgp_clearsign_command
              Type: string
              Default: ""

              This  format  is  used  to create an old-style "clearsigned" PGP
              message.  Note that the use of this format  is  strongly  depre-
              cated.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)



       pgp_decode_command
              Type: string
              Default: ""

              This format strings specifies a command which is used to  decode
              application/pgp attachments.

              The  PGP  command  formats  have their own set of printf(3)-like
              sequences:
              %p     Expands to PGPPASSFD=0 when a pass phrase is  needed,  to
                     an  empty string otherwise. Note: This may be used with a
                     %? construct.
              %f     Expands to the name of a file containing a message.
              %s     Expands to the name of a file  containing  the  signature
                     part
                                of  a multipart/signed attachment when verify-
                     ing it.
              %a     The value of $pgp_sign_as.
              %r     One or more key IDs (or fingerprints if available).

              For examples on how to configure these formats for  the  various
              versions  of  PGP which are floating around, see the pgp and gpg
              sample configuration files in the  samples/  subdirectory  which
              has  been  installed on your system alongside the documentation.
              (PGP only)



       pgp_decrypt_command
              Type: string
              Default: ""

              This command is used to decrypt a PGP encrypted message.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)



       pgp_decryption_okay
              Type: regular expression
              Default: ""

              If  you assign text to this variable, then an encrypted PGP mes-
              sage is only considered successfully  decrypted  if  the  output
              from  $pgp_decrypt_command  contains  the text.  This is used to
              protect  against  a  spoofed  encrypted  message,  with   multi-
              part/encrypted  headers but containing a block that is not actu-
              ally encrypted.  (e.g. simply signed and  ascii  armored  text).
              (PGP only)



       pgp_encrypt_only_command
              Type: string
              Default: ""

              This command is used to encrypt a body part without signing it.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)



       pgp_encrypt_sign_command
              Type: string
              Default: ""

              This command is used to both sign and encrypt a body part.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)



       pgp_entry_format
              Type: string
              Default: "%4n %t%f %4l/0x%k %-4a %2c %u"

              This variable allows you to customize the PGP key selection menu
              to your personal taste. This string is similar to $index_format,
              but has its own set of printf(3)-like sequences:
              %n     number
              %k     key id
              %u     user id
              %a     algorithm
              %l     key length
              %f     flags
              %c     capabilities
              %t     trust/validity of the key-uid association
              %[<s>] date of the key where <s> is an strftime(3) expression

              (PGP only)



       pgp_export_command
              Type: string
              Default: ""

              This  command is used to export a public key from the user's key
              ring.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)



       pgp_getkeys_command
              Type: string
              Default: ""

              This  command is invoked whenever Mutt needs to fetch the public
              key associated with an email address.   Of  the  sequences  sup-
              ported  by  $pgp_decode_command,  %r  is the only printf(3)-like
              sequence used with this format.  Note  that  in  this  case,  %r
              expands  to the email address, not the public key ID (the key ID
              is unknown, which is why Mutt is invoking this  command).   (PGP
              only)



       pgp_good_sign
              Type: regular expression
              Default: ""

              If  you  assign a text to this variable, then a PGP signature is
              only considered verified if the output from  $pgp_verify_command
              contains  the  text. Use this variable if the exit code from the
              command is 0 even for bad signatures.  (PGP only)



       pgp_ignore_subkeys
              Type: boolean
              Default: yes

              Setting this variable will cause Mutt to ignore OpenPGP subkeys.
              Instead,  the  principal key will inherit the subkeys' capabili-
              ties.  Unset this if you want to play interesting key  selection
              games.  (PGP only)



       pgp_import_command
              Type: string
              Default: ""

              This  command  is  used  to import a key from a message into the
              user's public key ring.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)



       pgp_list_pubring_command
              Type: string
              Default: ""

              This  command  is  used  to list the public key ring's contents.
              The output format must be analogous to the one used by


              gpg --list-keys --with-colons --with-fingerprint


              This format is also generated by the pgpring utility which comes
              with mutt.

              Note:  gpg's fixed-list-mode option should not be used.  It pro-
              duces a different date format which may result in  mutt  showing
              incorrect key generation dates.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)



       pgp_list_secring_command
              Type: string
              Default: ""

              This command is used to list the  secret  key  ring's  contents.
              The output format must be analogous to the one used by:


              gpg --list-keys --with-colons --with-fingerprint


              This format is also generated by the pgpring utility which comes
              with mutt.

              Note: gpg's fixed-list-mode option should not be used.  It  pro-
              duces  a  different date format which may result in mutt showing
              incorrect key generation dates.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)



       pgp_long_ids
              Type: boolean
              Default: yes

              If  set,  use 64 bit PGP key IDs, if unset use the normal 32 bit
              key IDs.  NOTE: Internally, Mutt has transitioned to using  fin-
              gerprints (or long key IDs as a fallback).  This option now only
              controls the display of key IDs in the key selection menu and  a
              few other places.  (PGP only)



       pgp_mime_auto
              Type: quadoption
              Default: ask-yes

              This  option controls whether Mutt will prompt you for automati-
              cally sending a (signed/encrypted) message using  PGP/MIME  when
              inline (traditional) fails (for any reason).

              Also  note  that  using  the  old-style  PGP  message  format is
              strongly deprecated.  (PGP only)



       pgp_replyinline
              Type: boolean
              Default: no

              Setting this variable will cause Mutt to always attempt to  cre-
              ate  an  inline (traditional) message when replying to a message
              which is PGP encrypted/signed inline.  This can be overridden by
              use  of  the pgp menu, when inline is not required.  This option
              does not automatically detect if  the  (replied-to)  message  is
              inline;  instead  it  relies  on  Mutt  internals for previously
              checked/flagged messages.

              Note that Mutt might automatically  use  PGP/MIME  for  messages
              which consist of more than a single MIME part.  Mutt can be con-
              figured to ask before  sending  PGP/MIME  messages  when  inline
              (traditional) would not work.

              Also see the $pgp_mime_auto variable.

              Also  note  that  using  the  old-style  PGP  message  format is
              strongly deprecated.  (PGP only)



       pgp_retainable_sigs
              Type: boolean
              Default: no

              If set, signed and encrypted messages  will  consist  of  nested
              multipart/signed and multipart/encrypted body parts.

              This  is useful for applications like encrypted and signed mail-
              ing lists, where the outer layer  (multipart/encrypted)  can  be
              easily   removed,  while  the  inner  multipart/signed  part  is
              retained.  (PGP only)



       pgp_self_encrypt
              Type: boolean
              Default: no

              When set, PGP encrypted messages will also  be  encrypted  using
              the key in $pgp_self_encrypt_as.  (PGP only)



       pgp_self_encrypt_as
              Type: string
              Default: ""

              This  is  an  additional  key  used  to  encrypt  messages  when
              $pgp_self_encrypt is set.  It is also used to  specify  the  key
              for  $postpone_encrypt.   It  should  be in keyid or fingerprint
              form (e.g. 0x00112233).  (PGP only)



       pgp_show_unusable
              Type: boolean
              Default: yes

              If set, mutt will display non-usable keys on the PGP key  selec-
              tion  menu.   This  includes  keys which have been revoked, have
              expired, or have been marked as "disabled" by  the  user.   (PGP
              only)



       pgp_sign_as
              Type: string
              Default: ""

              If  you  have  more than one key pair, this option allows you to
              specify which of your private keys to use.   It  is  recommended
              that   you  use  the  keyid  form  to  specify  your  key  (e.g.
              0x00112233).  (PGP only)



       pgp_sign_command
              Type: string
              Default: ""

              This command is used to create the detached PGP signature for  a
              multipart/signed PGP/MIME body part.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)



       pgp_sort_keys
              Type: sort order
              Default: address

              Specifies how the entries in the pgp menu are sorted.  The  fol-
              lowing are legal values:
              address
                     sort alphabetically by user id
              keyid  sort alphabetically by key id
              date   sort by key creation date
              trust  sort by the trust of the key

              If  you prefer reverse order of the above values, prefix it with
              "reverse-".  (PGP only)



       pgp_strict_enc
              Type: boolean
              Default: yes

              If set, Mutt will automatically encode PGP/MIME signed  messages
              as  quoted-printable.   Please note that unsetting this variable
              may lead to problems with non-verifyable PGP signatures, so only
              change this if you know what you are doing.  (PGP only)



       pgp_timeout
              Type: number
              Default: 300

              The  number  of  seconds  after  which  a cached passphrase will
              expire if not used.  (PGP only)



       pgp_use_gpg_agent
              Type: boolean
              Default: no

              If set, mutt will use a possibly-running  gpg-agent(1)  process.
              Note   that   as   of  version  2.1,  GnuPG  no  longer  exports
              GPG_AGENT_INFO, so mutt no longer verifies if the agent is  run-
              ning.  (PGP only)



       pgp_verify_command
              Type: string
              Default: ""

              This command is used to verify PGP signatures.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)



       pgp_verify_key_command
              Type: string
              Default: ""

              This command is used to verify  key  information  from  the  key
              selection menu.

              This is a format string, see the $pgp_decode_command command for
              possible printf(3)-like sequences.  (PGP only)



       pipe_decode
              Type: boolean
              Default: no

              Used in connection with the <pipe-message> command.  When unset,
              Mutt will pipe the messages without any preprocessing. When set,
              Mutt will weed headers and will attempt to decode  the  messages
              first.



       pipe_sep
              Type: string
              Default: "\n"

              The  separator  to  add  between  messages when piping a list of
              tagged messages to an external Unix command.



       pipe_split
              Type: boolean
              Default: no

              Used in connection with the  <pipe-message>  function  following
              <tag-prefix>.   If this variable is unset, when piping a list of
              tagged messages Mutt will concatenate the messages and will pipe
              them  all  concatenated.   When set, Mutt will pipe the messages
              one by one.  In both cases the messages are piped in the current
              sorted  order,  and  the $pipe_sep separator is added after each
              message.



       pop_auth_try_all
              Type: boolean
              Default: yes

              If set, Mutt will  try  all  available  authentication  methods.
              When  unset,  Mutt  will  only fall back to other authentication
              methods if the previous methods are unavailable. If a method  is
              available but authentication fails, Mutt will not connect to the
              POP server.



       pop_authenticators
              Type: string
              Default: ""

              This is a colon-delimited list of  authentication  methods  mutt
              may attempt to use to log in to an POP server, in the order mutt
              should try them.   Authentication  methods  are  either  "user",
              "apop"  or  any  SASL  mechanism, e.g. "digest-md5", "gssapi" or
              "cram-md5".  This option is case-insensitive. If this option  is
              unset  (the  default)  mutt  will  try all available methods, in
              order from most-secure to least-secure.

              Example:


              set pop_authenticators="digest-md5:apop:user"




       pop_checkinterval
              Type: number
              Default: 60

              This variable configures how often (in seconds) mutt should look
              for  new  mail  in the currently selected mailbox if it is a POP
              mailbox.



       pop_delete
              Type: quadoption
              Default: ask-no

              If set, Mutt will delete successfully downloaded  messages  from
              the  POP  server  when  using  the  <fetch-mail> function.  When
              unset, Mutt will download messages but also leave  them  on  the
              POP server.



       pop_host
              Type: string
              Default: ""

              The  name of your POP server for the <fetch-mail> function.  You
              can also specify an alternative  port,  username  and  password,
              i.e.:


              [pop[s]://][username[:password]@]popserver[:port]


              where "[...]" denotes an optional part.



       pop_last
              Type: boolean
              Default: no

              If  this  variable  is  set, mutt will try to use the "LAST" POP
              command for retrieving only unread messages from the POP  server
              when using the <fetch-mail> function.



       pop_pass
              Type: string
              Default: ""

              Specifies  the  password  for  your POP account.  If unset, Mutt
              will prompt you for your password when you open a POP mailbox.

              Warning: you should only use this  option  when  you  are  on  a
              fairly  secure machine, because the superuser can read your mut-
              trc even if you are the only one who can read the file.



       pop_reconnect
              Type: quadoption
              Default: ask-yes

              Controls whether or not Mutt will try to reconnect  to  the  POP
              server if the connection is lost.



       pop_user
              Type: string
              Default: ""

              Your login name on the POP server.

              This variable defaults to your user name on the local machine.



       post_indent_string
              Type: string
              Default: ""

              Similar  to  the  $attribution  variable,  Mutt will append this
              string after the inclusion of a message which is  being  replied
              to.



       postpone
              Type: quadoption
              Default: ask-yes

              Controls  whether  or  not  messages are saved in the $postponed
              mailbox when you elect not to send immediately.

              Also see the $recall variable.



       postponed
              Type: path
              Default: "~/postponed"

              Mutt allows you to indefinitely  "postpone  sending  a  message"
              which  you  are editing.  When you choose to postpone a message,
              Mutt saves it in the mailbox specified by this variable.

              Also see the $postpone variable.



       postpone_encrypt
              Type: boolean
              Default: no

              When set, postponed messages that are marked for encryption will
              be  self-encrypted.   Mutt  will  first try to encrypt using the
              value      specified      in       $pgp_self_encrypt_as       or
              $smime_self_encrypt_as.   If  those are not set, it will try the
              deprecated $postpone_encrypt_as.  (Crypto only)



       postpone_encrypt_as
              Type: string
              Default: ""

              This is a deprecated fall-back variable  for  $postpone_encrypt.
              Please   use   $pgp_self_encrypt_as  or  $smime_self_encrypt_as.
              (Crypto only)



       preconnect
              Type: string
              Default: ""

              If set, a shell command to be executed if mutt fails  to  estab-
              lish  a  connection to the server. This is useful for setting up
              secure connections, e.g. with ssh(1). If the command  returns  a
              nonzero status, mutt gives up opening the server. Example:


              set preconnect="ssh -f -q -L 1234:mailhost.net:143 mailhost.net \
              sleep 20 < /dev/null > /dev/null"


              Mailbox  "foo"  on "mailhost.net" can now be reached as "{local-
              host:1234}foo".

              Note: For this example to work, you must be able to  log  in  to
              the remote machine without having to enter a password.



       print
              Type: quadoption
              Default: ask-no

              Controls  whether  or  not Mutt really prints messages.  This is
              set to "ask-no" by default, because some people accidentally hit
              "p" often.



       print_command
              Type: path
              Default: "lpr"

              This  specifies  the  command  pipe that should be used to print
              messages.



       print_decode
              Type: boolean
              Default: yes

              Used in connection with the <print-message>  command.   If  this
              option is set, the message is decoded before it is passed to the
              external command specified by $print_command.  If this option is
              unset,  no processing will be applied to the message when print-
              ing it.  The latter setting may be useful if you are using  some
              advanced  printer filter which is able to properly format e-mail
              messages for printing.



       print_split
              Type: boolean
              Default: no

              Used in connection with the <print-message>  command.   If  this
              option  is  set, the command specified by $print_command is exe-
              cuted once for each message which is to  be  printed.   If  this
              option is unset, the command specified by $print_command is exe-
              cuted only once, and all the messages are concatenated,  with  a
              form feed as the message separator.

              Those  who use the enscript(1) program's mail-printing mode will
              most likely want to set this option.



       prompt_after
              Type: boolean
              Default: yes

              If you use an external $pager, setting this variable will  cause
              Mutt  to  prompt  you  for a command when the pager exits rather
              than returning to the index menu.  If unset, Mutt will return to
              the index menu when the external pager exits.



       query_command
              Type: path
              Default: ""

              This  specifies  the  command  Mutt  will  use  to make external
              address queries.  The string may contain a "%s", which  will  be
              substituted with the query string the user types.  Mutt will add
              quotes around the  string  substituted  for  "%s"  automatically
              according  to  shell  quoting  rules, so you should avoid adding
              your own.  If no "%s" is found in the string, Mutt  will  append
              the user's query to the end of the string.  See "query" for more
              information.



       query_format
              Type: string
              Default: "%4c %t %-25.25a %-25.25n %?e?(%e)?"

              This variable describes the format of the "query" menu. The fol-
              lowing printf(3)-style sequences are understood:
              %a     destination address
              %c     current entry number
              %e     extra information *
              %n     destination name
              %t     "*" if current entry is tagged, a space otherwise
              %>X    right justify the rest of the string and pad with "X"
              %|X    pad to the end of the line with "X"
              %*X    soft-fill with character "X" as pad

              For  an  explanation of "soft-fill", see the $index_format docu-
              mentation.

              * = can be optionally printed if nonzero, see the $status_format
              documentation.



       quit
              Type: quadoption
              Default: yes

              This  variable  controls whether "quit" and "exit" actually quit
              from mutt.  If this option is set, they do quit, if it is unset,
              they  have no effect, and if it is set to ask-yes or ask-no, you
              are prompted for confirmation when you try to quit.



       quote_regexp
              Type: regular expression
              Default: "^([ \t]*[|>:}#])+"

              A regular expression used in the  internal  pager  to  determine
              quoted  sections  of  text in the body of a message. Quoted text
              may be filtered out using the <toggle-quoted> command,  or  col-
              ored according to the "color quoted" family of directives.

              Higher  levels  of  quoting  may  be colored differently ("color
              quoted1", "color quoted2", etc.). The quoting  level  is  deter-
              mined  by  removing the last character from the matched text and
              recursively reapplying the regular expression until it fails  to
              produce a match.

              Match  detection  may  be  overridden  by  the  $smileys regular
              expression.



       read_inc
              Type: number
              Default: 10

              If set to a value greater than 0, Mutt will display  which  mes-
              sage  it is currently on when reading a mailbox or when perform-
              ing search actions such as search  and  limit.  The  message  is
              printed  after  this  many  messages  have been read or searched
              (e.g., if set to 25, Mutt will print a message  when  it  is  at
              message  25,  and  then again when it gets to message 50).  This
              variable is meant to indicate progress when reading or searching
              large mailboxes which may take some time.  When set to 0, only a
              single message will appear before the reading the mailbox.

              Also see the $write_inc, $net_inc and  $time_inc  variables  and
              the  "tuning"  section  of the manual for performance considera-
              tions.



       read_only
              Type: boolean
              Default: no

              If set, all folders are opened in read-only mode.



       realname
              Type: string
              Default: ""

              This variable specifies what "real" or "personal" name should be
              used when sending messages.

              By default, this is the GECOS field from /etc/passwd.  Note that
              this variable will not be used when the user has set a real name
              in the $from variable.



       recall
              Type: quadoption
              Default: ask-yes

              Controls  whether  or  not  Mutt recalls postponed messages when
              composing a new message.

              Setting this variable to yes is not generally useful,  and  thus
              not recommended.  Note that the <recall-message> function can be
              used to manually recall postponed messages.

              Also see $postponed variable.



       record
              Type: path
              Default: "~/sent"

              This specifies the file into which your outgoing messages should
              be  appended.  (This is meant as the primary method for saving a
              copy of your messages, but another way to do this is  using  the
              "my_hdr"  command  to  create  a  "Bcc:"  field  with your email
              address in it.)

              The value of  $record  is  overridden  by  the  $force_name  and
              $save_name variables, and the "fcc-hook" command.



       reflow_space_quotes
              Type: boolean
              Default: yes

              This  option controls how quotes from format=flowed messages are
              displayed in the pager  and  when  replying  (with  $text_flowed
              unset).   When  set, this option adds spaces after each level of
              quote marks, turning ">>>foo" into "> > > foo".

              Note: If $reflow_text is  unset,  this  option  has  no  effect.
              Also,  this  option does not affect replies when $text_flowed is
              set.



       reflow_text
              Type: boolean
              Default: yes

              When set, Mutt will  reformat  paragraphs  in  text/plain  parts
              marked  format=flowed.   If  unset, Mutt will display paragraphs
              unaltered from how they appear in the message body.  See RFC3676
              for details on the format=flowed format.

              Also see $reflow_wrap, and $wrap.



       reflow_wrap
              Type: number
              Default: 78

              This  variable  controls the maximum paragraph width when refor-
              matting text/plain parts when $reflow_text  is  set.   When  the
              value  is  0, paragraphs will be wrapped at the terminal's right
              margin.  A positive value sets the paragraph width  relative  to
              the left margin.  A negative value set the paragraph width rela-
              tive to the right margin.

              Also see $wrap.



       reply_regexp
              Type: regular expression
              Default: "^(re([\[0-9\]+])*|aw):[ \t]*"

              A regular expression  used  to  recognize  reply  messages  when
              threading  and  replying.  The  default value corresponds to the
              English "Re:" and the German "Aw:".



       reply_self
              Type: boolean
              Default: no

              If unset and you are replying to a message  sent  by  you,  Mutt
              will  assume  that  you  want to reply to the recipients of that
              message rather than to yourself.

              Also see the "alternates" command.



       reply_to
              Type: quadoption
              Default: ask-yes

              If set, when replying to a message, Mutt will  use  the  address
              listed  in  the  Reply-to: header as the recipient of the reply.
              If unset, it will use the address  in  the  From:  header  field
              instead.   This option is useful for reading a mailing list that
              sets the Reply-To: header field to the list address and you want
              to send a private message to the author of a message.



       resolve
              Type: boolean
              Default: yes

              When  set, the cursor will be automatically advanced to the next
              (possibly undeleted) message whenever a  command  that  modifies
              the current message is executed.



       resume_draft_files
              Type: boolean
              Default: no

              If  set,  draft  files (specified by -H on the command line) are
              processed  similarly  to  when  resuming  a  postponed  message.
              Recipients  are  not prompted for; send-hooks are not evaluated;
              no alias expansion takes place; user-defined headers and  signa-
              tures are not added to the message.



       resume_edited_draft_files
              Type: boolean
              Default: yes

              If  set, draft files previously edited (via -E -H on the command
              line) will have $resume_draft_files automatically set when  they
              are used as a draft file again.

              The  first  time  a draft file is saved, mutt will add a header,
              X-Mutt-Resume-Draft to the saved file.  The next time the  draft
              file  is  read  in,  if  mutt  sees  the  header,  it  will  set
              $resume_draft_files.

              This  option  is  designed  to  prevent   multiple   signatures,
              user-defined  headers,  and  other processing effects from being
              made multiple times to the draft file.



       reverse_alias
              Type: boolean
              Default: no

              This variable controls whether or  not  Mutt  will  display  the
              "personal"  name from your aliases in the index menu if it finds
              an alias that matches the message's sender.  For example, if you
              have the following alias:


              alias juser abd30425@somewhere.net (Joe User)


              and then you receive mail which contains the following header:


              From: abd30425@somewhere.net


              It would be displayed in the index menu as "Joe User" instead of
              "abd30425@somewhere.net."  This  is  useful  when  the  person's
              e-mail address is not human friendly.



       reverse_name
              Type: boolean
              Default: no

              It  may  sometimes  arrive  that  you  receive mail to a certain
              machine, move the messages to another machine, and reply to some
              the  messages  from there.  If this variable is set, the default
              From: line of the reply messages  is  built  using  the  address
              where  you  received  the  messages  you are replying to if that
              address matches your "alternates".  If the variable is unset, or
              the  address that would be used doesn't match your "alternates",
              the From: line will use your address on the current machine.

              Also see the "alternates" command.



       reverse_realname
              Type: boolean
              Default: yes

              This variable fine-tunes the behavior of the $reverse_name  fea-
              ture.   When  it is set, mutt will use the address from incoming
              messages as-is, possibly including eventual real names.  When it
              is  unset,  mutt will override any such real names with the set-
              ting of the $realname variable.



       rfc2047_parameters
              Type: boolean
              Default: no

              When this variable is set, Mutt will decode RFC2047-encoded MIME
              parameters. You want to set this variable when mutt suggests you
              to save attachments to files named like:


              =?iso-8859-1?Q?file=5F=E4=5F991116=2Ezip?=


              When this variable is set interactively,  the  change  won't  be
              active until you change folders.

              Note  that  this use of RFC2047's encoding is explicitly prohib-
              ited by the standard, but nevertheless encountered in the wild.

              Also note that setting this parameter will not have  the  effect
              that  mutt  generates this kind of encoding.  Instead, mutt will
              unconditionally use the encoding specified in RFC2231.



       save_address
              Type: boolean
              Default: no

              If set, mutt will take the sender's full address when choosing a
              default  folder  for saving a mail. If $save_name or $force_name
              is set too, the selection of the Fcc folder will be  changed  as
              well.



       save_empty
              Type: boolean
              Default: yes

              When  unset,  mailboxes  which contain no saved messages will be
              removed when closed (the exception is $spoolfile which is  never
              removed).  If set, mailboxes are never removed.

              Note:  This only applies to mbox and MMDF folders, Mutt does not
              delete MH and Maildir directories.



       save_history
              Type: number
              Default: 0

              This variable controls the size of the  history  (per  category)
              saved in the $history_file file.



       save_name
              Type: boolean
              Default: no

              This  variable  controls  how  copies  of  outgoing messages are
              saved.  When set, a check is made to see if a mailbox  specified
              by the recipient address exists (this is done by searching for a
              mailbox in the $folder directory with the username part  of  the
              recipient address).  If the mailbox exists, the outgoing message
              will be saved to that mailbox, otherwise the message is saved to
              the $record mailbox.

              Also see the $force_name variable.



       score
              Type: boolean
              Default: yes

              When this variable is unset, scoring is turned off.  This can be
              useful to selectively disable scoring for certain  folders  when
              the $score_threshold_delete variable and related are used.



       score_threshold_delete
              Type: number
              Default: -1

              Messages which have been assigned a score equal to or lower than
              the value of this variable are automatically marked for deletion
              by  mutt.  Since mutt scores are always greater than or equal to
              zero, the default setting of this variable  will  never  mark  a
              message for deletion.



       score_threshold_flag
              Type: number
              Default: 9999

              Messages  which have been assigned a score greater than or equal
              to this variable's value are automatically marked "flagged".



       score_threshold_read
              Type: number
              Default: -1

              Messages which have been assigned a score equal to or lower than
              the  value  of this variable are automatically marked as read by
              mutt.  Since mutt scores are always greater  than  or  equal  to
              zero,  the  default  setting  of this variable will never mark a
              message read.



       search_context
              Type: number
              Default: 0

              For the pager, this variable specifies the number of lines shown
              before  search  results.  By  default,  search  results  will be
              top-aligned.



       send_charset
              Type: string
              Default: "us-ascii:iso-8859-1:utf-8"

              A colon-delimited list of character sets for outgoing  messages.
              Mutt will use the first character set into which the text can be
              converted exactly.  If your $charset  is  not  "iso-8859-1"  and
              recipients  may  not  understand  "UTF-8",  it  is  advisable to
              include in the list an appropriate widely used standard  charac-
              ter set (such as "iso-8859-2", "koi8-r" or "iso-2022-jp") either
              instead of or after "iso-8859-1".

              In case the text cannot be converted into one of these  exactly,
              mutt uses $charset as a fallback.



       sendmail
              Type: path
              Default: "/usr/sbin/sendmail -oem -oi"

              Specifies the program and arguments used to deliver mail sent by
              Mutt.  Mutt expects that the specified program interprets  addi-
              tional  arguments  as  recipient  addresses.   Mutt  appends all
              recipients after adding a -- delimiter (if not already present).
              Additional flags, such as for $use_8bitmime, $use_envelope_from,
              $dsn_notify, or $dsn_return will be added before the delimiter.



       sendmail_wait
              Type: number
              Default: 0

              Specifies the number  of  seconds  to  wait  for  the  $sendmail
              process  to  finish before giving up and putting delivery in the
              background.

              Mutt interprets the value of this variable as follows:
              >0     number of seconds to wait for sendmail to  finish  before
                     continuing
              0      wait forever for sendmail to finish
              <0     always put sendmail in the background without waiting

              Note that if you specify a value other than 0, the output of the
              child process will be put in a temporary file.  If there is some
              error, you will be informed as to where to find the output.



       shell
              Type: path
              Default: ""

              Command to use when spawning a subshell.  By default, the user's
              login shell from /etc/passwd is used.



       sidebar_delim_chars
              Type: string
              Default: "/."

              This contains the list of characters which  you  would  like  to
              treat as folder separators for displaying paths in the sidebar.

              Local  mail  is  often arranged in directories: `dir1/dir2/mail-
              box'.


              set sidebar_delim_chars='/'


              IMAP mailboxes are often named: `folder1.folder2.mailbox'.


              set sidebar_delim_chars='.'


              See also:  $sidebar_short_path,  $sidebar_folder_indent,  $side-
              bar_indent_string.



       sidebar_divider_char
              Type: string
              Default: "|"

              This  specifies  the  characters to be drawn between the sidebar
              (when visible) and the other  Mutt  panels.  ASCII  and  Unicode
              line-drawing characters are supported.



       sidebar_folder_indent
              Type: boolean
              Default: no

              Set this to indent mailboxes in the sidebar.

              See  also:  $sidebar_short_path,  $sidebar_indent_string, $side-
              bar_delim_chars.



       sidebar_format
              Type: string
              Default: "%B%*  %n"

              This variable allows you to customize the sidebar display.  This
              string  is  similar  to  $index_format,  but  has its own set of
              printf(3)-like sequences:
              %B     Name of the mailbox
              %S     * Size of mailbox (total number of messages)
              %N     * Number of unread messages in the mailbox
              %n     N if mailbox has new mail, blank otherwise
              %F     * Number of Flagged messages in the mailbox
              %!     "!" : one flagged message; "!!" : two  flagged  messages;
                     "n!"  : n flagged messages (for n > 2).  Otherwise prints
                     nothing.
              %d     * @ Number of deleted messages
              %L     * @ Number of messages after limiting
              %t     * @ Number of tagged messages
              %>X    right justify the rest of the string and pad with "X"
              %|X    pad to the end of the line with "X"
              %*X    soft-fill with character "X" as pad

              * = Can be optionally printed if nonzero @ = Only applicable  to
              the current folder

              In  order  to  use %S, %N, %F, and %!, $mail_check_stats must be
              set.  When thus set,  a  suggested  value  for  this  option  is
              "%B%?F? [%F]?%* %?N?%N/?%S".



       sidebar_indent_string
              Type: string
              Default: "  "

              This  specifies  the  string that is used to indent mailboxes in
              the sidebar.  It defaults to two spaces.

              See also:  $sidebar_short_path,  $sidebar_folder_indent,  $side-
              bar_delim_chars.



       sidebar_new_mail_only
              Type: boolean
              Default: no

              When  set,  the  sidebar  will only display mailboxes containing
              new, or flagged, mail.

              See also: sidebar_whitelist.



       sidebar_next_new_wrap
              Type: boolean
              Default: no

              When set, the <sidebar-next-new> command will not stop  and  the
              end  of the list of mailboxes, but wrap around to the beginning.
              The <sidebar-prev-new> command is similarly  affected,  wrapping
              around to the end of the list.



       sidebar_short_path
              Type: boolean
              Default: no

              By default the sidebar will show the mailbox's path, relative to
              the $folder variable. Setting sidebar_shortpath=yes will shorten
              the names relative to the previous name. Here's an example:
              shortpath=no
                     shortpath=yes       shortpath=yes,      folderindent=yes,
                     indentstr=".."
              fruit  fruit fruit
              fruit.apple
                     apple ..apple
              fruit.banana
                     banana ..banana
              fruit.cherry
                     cherry ..cherry

              See also: $sidebar_delim_chars,  $sidebar_folder_indent,  $side-
              bar_indent_string.



       sidebar_sort_method
              Type: sort order
              Default: order

              Specifies  how to sort entries in the file browser.  By default,
              the entries are sorted alphabetically.  Valid values:
              - alpha (alphabetically)
              - count (all message count)
              - flagged (flagged message count)
              - name (alphabetically)
              - new (unread message count)
              - path (alphabetically)
              - unread (unread message count)
              - unsorted

              You may optionally use the "reverse-" prefix to specify  reverse
              sorting order (example: "set sort_browser=reverse-date").



       sidebar_visible
              Type: boolean
              Default: no

              This specifies whether or not to show sidebar. The sidebar shows
              a list of all your mailboxes.

              See also: $sidebar_format, $sidebar_width



       sidebar_width
              Type: number
              Default: 30

              This controls the width of  the  sidebar.   It  is  measured  in
              screen  columns.  For example: sidebar_width=20 could display 20
              ASCII characters, or 10 Chinese characters.



       sig_dashes
              Type: boolean
              Default: yes

              If set, a line containing "-- " (note the trailing  space)  will
              be  inserted before your $signature.  It is strongly recommended
              that you not unset this variable unless your signature  contains
              just  your  name.   The reason for this is because many software
              packages use "-- \n" to detect  your  signature.   For  example,
              Mutt  has  the ability to highlight the signature in a different
              color in the built-in pager.



       sig_on_top
              Type: boolean
              Default: no

              If set, the signature will be included before any quoted or for-
              warded  text.   It  is  strongly recommended that you do not set
              this variable unless you really know what you are doing, and are
              prepared to take some heat from netiquette guardians.



       signature
              Type: path
              Default: "~/.signature"

              Specifies  the  filename of your signature, which is appended to
              all outgoing messages.   If the filename ends with a pipe ("|"),
              it  is assumed that filename is a shell command and input should
              be read from its standard output.



       simple_search
              Type: string
              Default: "~f %s | ~s %s"

              Specifies how Mutt should expand a simple  search  into  a  real
              search  pattern.   A  simple search is one that does not contain
              any of the "~"  pattern  operators.   See  "patterns"  for  more
              information on search patterns.

              For  example,  if  you  simply  type  "joe" at a search or limit
              prompt, Mutt will automatically expand it to the value specified
              by  this  variable  by  replacing "%s" with the supplied string.
              For the default value, "joe" would be expanded to: "~f joe |  ~s
              joe".



       sleep_time
              Type: number
              Default: 1

              Specifies  time,  in  seconds, to pause while displaying certain
              informational messages, while moving from folder to  folder  and
              after  expunging  messages from the current folder.  The default
              is to pause one second, so a value of zero for this option  sup-
              presses the pause.



       smart_wrap
              Type: boolean
              Default: yes

              Controls  the  display  of lines longer than the screen width in
              the internal pager. If set, long lines are  wrapped  at  a  word
              boundary.   If  unset,  lines  are  simply wrapped at the screen
              edge. Also see the $markers variable.



       smileys
              Type: regular expression
              Default: "(>From )|(:[-^]?[][)(><}{|/DP])"

              The pager uses this variable to catch some  common  false  posi-
              tives  of $quote_regexp, most notably smileys and not consider a
              line quoted text if it also matches $smileys. This  mostly  hap-
              pens at the beginning of a line.



       smime_ask_cert_label
              Type: boolean
              Default: yes

              This flag controls whether you want to be asked to enter a label
              for a certificate about to be added to the database or  not.  It
              is set by default.  (S/MIME only)



       smime_ca_location
              Type: path
              Default: ""

              This variable contains the name of either a directory, or a file
              which  contains  trusted  certificates  for  use  with  OpenSSL.
              (S/MIME only)



       smime_certificates
              Type: path
              Default: ""

              Since  for  S/MIME there is no pubring/secring as with PGP, mutt
              has to handle storage and retrieval of keys by itself.  This  is
              very  basic  right  now, and keys and certificates are stored in
              two  different  directories,  both  named  as   the   hash-value
              retrieved  from  OpenSSL.  There is an index file which contains
              mailbox-address keyid pairs, and which can be  manually  edited.
              This option points to the location of the certificates.  (S/MIME
              only)



       smime_decrypt_command
              Type: string
              Default: ""

              This format string specifies a command which is used to  decrypt
              application/x-pkcs7-mime attachments.

              The OpenSSL command formats have their own set of printf(3)-like
              sequences similar to PGP's:
              %f     Expands to the name of a file containing a message.
              %s     Expands to the name of a file  containing  the  signature
                     part
                                of  a multipart/signed attachment when verify-
                     ing it.
              %k     The key-pair specified with $smime_default_key
              %c     One or more certificate IDs.
              %a     The algorithm used for encryption.
              %d     The   message    digest    algorithm    specified    with
                     $smime_sign_digest_alg.
              %C     CA location:  Depending on whether $smime_ca_location
                                points to a directory or file, this expands to
                                "-CApath   $smime_ca_location"   or   "-CAfile
                     $smime_ca_location".

              For examples on how to configure these formats, see the smime.rc
              in  the  samples/  subdirectory which has been installed on your
              system alongside the documentation.  (S/MIME only)



       smime_decrypt_use_default_key
              Type: boolean
              Default: yes

              If set (default) this tells mutt to  use  the  default  key  for
              decryption.    Otherwise,    if   managing   multiple   certifi-
              cate-key-pairs, mutt will try  to  use  the  mailbox-address  to
              determine the key to use. It will ask you to supply a key, if it
              can't find one.  (S/MIME only)



       smime_default_key
              Type: string
              Default: ""

              This is the default key-pair to use for signing.  This  must  be
              set to the keyid (the hash-value that OpenSSL generates) to work
              properly (S/MIME only)



       smime_encrypt_command
              Type: string
              Default: ""

              This command is used to create encrypted S/MIME messages.

              This is a format string, see the $smime_decrypt_command  command
              for possible printf(3)-like sequences.  (S/MIME only)



       smime_encrypt_with
              Type: string
              Default: "aes256"

              This  sets  the  algorithm  that  should be used for encryption.
              Valid choices are "aes128", "aes192", "aes256",  "des",  "des3",
              "rc2-40", "rc2-64", "rc2-128".  (S/MIME only)



       smime_get_cert_command
              Type: string
              Default: ""

              This  command  is used to extract X509 certificates from a PKCS7
              structure.

              This is a format string, see the $smime_decrypt_command  command
              for possible printf(3)-like sequences.  (S/MIME only)



       smime_get_cert_email_command
              Type: string
              Default: ""

              This  command  is  used to extract the mail address(es) used for
              storing X509 certificates, and  for  verification  purposes  (to
              check  whether the certificate was issued for the sender's mail-
              box).

              This is a format string, see the $smime_decrypt_command  command
              for possible printf(3)-like sequences.  (S/MIME only)



       smime_get_signer_cert_command
              Type: string
              Default: ""

              This  command  is used to extract only the signers X509 certifi-
              cate from a S/MIME signature, so that  the  certificate's  owner
              may get compared to the email's "From:" field.

              This  is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)



       smime_import_cert_command
              Type: string
              Default: ""

              This command is used to import a certificate via smime_keys.

              This is a format string, see the $smime_decrypt_command  command
              for possible printf(3)-like sequences.  (S/MIME only)



       smime_is_default
              Type: boolean
              Default: no

              The   default   behavior   of   mutt   is  to  use  PGP  on  all
              auto-sign/encryption operations. To override and to use  OpenSSL
              instead  this  must  be  set.  However, this has no effect while
              replying, since mutt will automatically select the same applica-
              tion  that was used to sign/encrypt the original message.  (Note
              that   this   variable   can   be   overridden   by    unsetting
              $crypt_autosmime.)  (S/MIME only)



       smime_keys
              Type: path
              Default: ""

              Since  for  S/MIME there is no pubring/secring as with PGP, mutt
              has to handle storage and retrieval  of  keys/certs  by  itself.
              This  is  very basic right now, and stores keys and certificates
              in two different  directories,  both  named  as  the  hash-value
              retrieved  from  OpenSSL.  There is an index file which contains
              mailbox-address keyid pair, and which can  be  manually  edited.
              This option points to the location of the private keys.  (S/MIME
              only)



       smime_pk7out_command
              Type: string
              Default: ""

              This command is used to extract PKCS7 structures of S/MIME  sig-
              natures, in order to extract the public X509 certificate(s).

              This  is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)



       smime_self_encrypt
              Type: boolean
              Default: no

              When set, S/MIME encrypted messages will also be encrypted using
              the certificate in $smime_self_encrypt_as.  (S/MIME only)



       smime_self_encrypt_as
              Type: string
              Default: ""

              This  is an additional certificate used to encrypt messages when
              $smime_self_encrypt is set.  It is also used to specify the cer-
              tificate  for  $postpone_encrypt.   It  should be the hash-value
              that OpenSSL generates.  (S/MIME only)



       smime_sign_command
              Type: string
              Default: ""

              This command is used to created S/MIME signatures of type multi-
              part/signed, which can be read by all mail clients.

              This  is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)



       smime_sign_digest_alg
              Type: string
              Default: "sha256"

              This sets the algorithm that should be used  for  the  signature
              message  digest.   Valid  choices  are  "md5", "sha1", "sha224",
              "sha256", "sha384", "sha512".  (S/MIME only)



       smime_sign_opaque_command
              Type: string
              Default: ""

              This command is used to created S/MIME signatures of type appli-
              cation/x-pkcs7-signature,  which  can  only  be  handled by mail
              clients supporting the S/MIME extension.

              This is a format string, see the $smime_decrypt_command  command
              for possible printf(3)-like sequences.  (S/MIME only)



       smime_timeout
              Type: number
              Default: 300

              The  number  of  seconds  after  which  a cached passphrase will
              expire if not used.  (S/MIME only)



       smime_verify_command
              Type: string
              Default: ""

              This command is used to verify S/MIME signatures of type  multi-
              part/signed.

              This  is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)



       smime_verify_opaque_command
              Type: string
              Default: ""

              This command is used to verify S/MIME signatures of type  appli-
              cation/x-pkcs7-mime.

              This  is a format string, see the $smime_decrypt_command command
              for possible printf(3)-like sequences.  (S/MIME only)



       smtp_authenticators
              Type: string
              Default: ""

              This is a colon-delimited list of  authentication  methods  mutt
              may  attempt  to  use  to log in to an SMTP server, in the order
              mutt should try them.  Authentication methods are any SASL mech-
              anism,  e.g.  "digest-md5", "gssapi" or "cram-md5".  This option
              is case-insensitive. If it is "unset" (the  default)  mutt  will
              try   all  available  methods,  in  order  from  most-secure  to
              least-secure.

              Example:


              set smtp_authenticators="digest-md5:cram-md5"




       smtp_pass
              Type: string
              Default: ""

              Specifies the password for your SMTP account.   If  unset,  Mutt
              will  prompt  you for your password when you first send mail via
              SMTP.  See $smtp_url to configure mutt to send mail via SMTP.

              Warning: you should only use this  option  when  you  are  on  a
              fairly  secure machine, because the superuser can read your mut-
              trc even if you are the only one who can read the file.



       smtp_url
              Type: string
              Default: ""

              Defines the SMTP smarthost where sent  messages  should  relayed
              for delivery. This should take the form of an SMTP URL, e.g.:


              smtp[s]://[user[:pass]@]host[:port]


              where  "[...]"  denotes an optional part.  Setting this variable
              overrides the value of the $sendmail variable.



       sort
              Type: sort order
              Default: date

              Specifies how to sort messages in the "index" menu.  Valid  val-
              ues are:
              - date or date-sent
              - date-received
              - from
              - mailbox-order (unsorted)
              - score
              - size
              - spam
              - subject
              - threads
              - to

              You  may optionally use the "reverse-" prefix to specify reverse
              sorting order (example: "set sort=reverse-date-sent").



       sort_alias
              Type: sort order
              Default: alias

              Specifies how the entries in the "alias" menu are  sorted.   The
              following are legal values:
              - address (sort alphabetically by email address)
              - alias (sort alphabetically by alias name)
              - unsorted (leave in order specified in .muttrc)


       sort_aux
              Type: sort order
              Default: date

              When  sorting by threads, this variable controls how threads are
              sorted in relation to other threads, and how the branches of the
              thread  trees  are  sorted.   This  can be set to any value that
              $sort can, except "threads" (in that case, mutt  will  just  use
              "date-sent").   You can also specify the "last-" prefix in addi-
              tion to the "reverse-"  prefix,  but  "last-"  must  come  after
              "reverse-".   The  "last-"  prefix  causes messages to be sorted
              against its siblings by which has the last descendant, using the
              rest of $sort_aux as an ordering.  For instance,


              set sort_aux=last-date-received


              would  mean  that if a new message is received in a thread, that
              thread becomes the last one displayed (or the first, if you have
              "set sort=reverse-threads".)

              Note:  For  reversed  $sort  order  $sort_aux  is reversed again
              (which is not the right thing to do, but kept to not  break  any
              existing configuration setting).



       sort_browser
              Type: sort order
              Default: alpha

              Specifies  how to sort entries in the file browser.  By default,
              the entries are sorted alphabetically.  Valid values:
              - alpha (alphabetically)
              - date
              - size
              - unsorted

              You may optionally use the "reverse-" prefix to specify  reverse
              sorting order (example: "set sort_browser=reverse-date").



       sort_re
              Type: boolean
              Default: yes

              This  variable  is  only  useful  when  sorting  by threads with
              $strict_threads unset.  In that case, it changes  the  heuristic
              mutt  uses  to  thread  messages by subject.  With $sort_re set,
              mutt will only attach a message as the child of another  message
              by  subject  if  the  subject of the child message starts with a
              substring matching the setting of $reply_regexp.  With  $sort_re
              unset,  mutt  will attach the message whether or not this is the
              case, as long as the non-$reply_regexp parts  of  both  messages
              are identical.



       spam_separator
              Type: string
              Default: ","

              This  variable  controls what happens when multiple spam headers
              are matched: if unset, each successive header will overwrite any
              previous  matches value for the spam label. If set, each succes-
              sive match will append to the previous,  using  this  variable's
              value as a separator.



       spoolfile
              Type: path
              Default: ""

              If  your spool mailbox is in a non-default place where Mutt can-
              not find it, you can specify its location  with  this  variable.
              Mutt  will initially set this variable to the value of the envi-
              ronment variable $MAIL or $MAILDIR if either is defined.



       ssl_ca_certificates_file
              Type: path
              Default: ""

              This variable specifies a file containing  trusted  CA  certifi-
              cates.   Any server certificate that is signed with one of these
              CA certificates is also automatically accepted.

              Example:


              set ssl_ca_certificates_file=/etc/ssl/certs/ca-certificates.crt




       ssl_client_cert
              Type: path
              Default: ""

              The file containing a client certificate and its associated pri-
              vate key.



       ssl_force_tls
              Type: boolean
              Default: no

              If  this variable is set, Mutt will require that all connections
              to remote servers be encrypted. Furthermore it will  attempt  to
              negotiate TLS even if the server does not advertise the capabil-
              ity, since it would otherwise have to abort the connection  any-
              way. This option supersedes $ssl_starttls.



       ssl_min_dh_prime_bits
              Type: number
              Default: 0

              This  variable  specifies  the minimum acceptable prime size (in
              bits) for use in any Diffie-Hellman key exchange. A value  of  0
              will use the default from the GNUTLS library.



       ssl_starttls
              Type: quadoption
              Default: yes

              If  set  (the  default),  mutt  will  attempt to use STARTTLS on
              servers advertising the capability. When unset,  mutt  will  not
              attempt to use STARTTLS regardless of the server's capabilities.



       ssl_use_sslv2
              Type: boolean
              Default: no

              This  variable  specifies whether to attempt to use SSLv2 in the
              SSL authentication process. Note that SSLv2 and  SSLv3  are  now
              considered fundamentally insecure and are no longer recommended.



       ssl_use_sslv3
              Type: boolean
              Default: no

              This  variable  specifies whether to attempt to use SSLv3 in the
              SSL authentication process. Note that SSLv2 and  SSLv3  are  now
              considered fundamentally insecure and are no longer recommended.



       ssl_use_tlsv1
              Type: boolean
              Default: yes

              This variable specifies whether to attempt to use TLSv1.0 in the
              SSL authentication process.



       ssl_use_tlsv1_1
              Type: boolean
              Default: yes

              This variable specifies whether to attempt to use TLSv1.1 in the
              SSL authentication process.



       ssl_use_tlsv1_2
              Type: boolean
              Default: yes

              This variable specifies whether to attempt to use TLSv1.2 in the
              SSL authentication process.



       ssl_usesystemcerts
              Type: boolean
              Default: yes

              If set to yes, mutt will use CA certificates in the  system-wide
              certificate  store  when  checking  if  a  server certificate is
              signed by a trusted CA.



       ssl_verify_dates
              Type: boolean
              Default: yes

              If set (the default),  mutt  will  not  automatically  accept  a
              server  certificate  that  is  either  not  yet valid or already
              expired. You should only unset this for particular known  hosts,
              using the <account-hook> function.



       ssl_verify_host
              Type: boolean
              Default: yes

              If  set  (the  default),  mutt  will  not automatically accept a
              server certificate whose host name does not match the host  used
              in  your  folder  URL. You should only unset this for particular
              known hosts, using the <account-hook> function.



       ssl_verify_partial_chains
              Type: boolean
              Default: no

              This option should not be changed from the  default  unless  you
              understand what you are doing.

              Setting  this variable to yes will permit verifying partial cer-
              tification chains, i. e. a certificate chain where not the root,
              but an intermediate certificate CA, or the host certificate, are
              marked trusted (in $certificate_file), without marking the  root
              signing CA as trusted.

              (OpenSSL 1.0.2b and newer only).



       ssl_ciphers
              Type: string
              Default: ""

              Contains  a  colon-seperated  list  of ciphers to use when using
              SSL.  For OpenSSL, see ciphers(1) for the syntax of the string.

              For GnuTLS, this option will be used in place of "NORMAL" at the
              start  of  the priority string.  See gnutls_priority_init(3) for
              the syntax and more details.  (Note:  GnuTLS  version  2.1.7  or
              higher is required.)



       status_chars
              Type: string
              Default: "-*%A"

              Controls  the  characters  used  by  the "%r" indicator in $sta-
              tus_format. The first character is  used  when  the  mailbox  is
              unchanged. The second is used when the mailbox has been changed,
              and it needs to be resynchronized. The  third  is  used  if  the
              mailbox  is  in  read-only  mode,  or if the mailbox will not be
              written when exiting that mailbox (You  can  toggle  whether  to
              write  changes  to  a mailbox with the <toggle-write> operation,
              bound by default to "%"). The fourth is used  to  indicate  that
              the current folder has been opened in attach- message mode (Cer-
              tain operations like composing a new mail, replying, forwarding,
              etc. are not permitted in this mode).



       status_format
              Type: string
              Default: "-%r-Mutt: %f [Msgs:%?M?%M/?%m%?n? New:%n?%?o? Old:%o?%?d? Del:%d?%?F? Flag:%F?%?t? Tag:%t?%?p? Post:%p?%?b? Inc:%b?%?l? %l?]---(%s/%S)-%>-(%P)---"

              Controls  the format of the status line displayed in the "index"
              menu.  This string is similar to $index_format, but has its  own
              set of printf(3)-like sequences:
              %b     number of mailboxes with new mail *
              %d     number of deleted messages *
              %f     the full pathname of the current mailbox
              %F     number of flagged messages *
              %h     local hostname
              %l     size (in bytes) of the current mailbox *
              %L     size  (in bytes) of the messages shown (i.e., which match
                     the current limit) *
              %m     the number of messages in the mailbox *
              %M     the number of messages shown (i.e., which match the  cur-
                     rent limit) *
              %n     number of new messages in the mailbox *
              %o     number of old unread messages *
              %p     number of postponed messages *
              %P     percentage of the way through the index
              %r     modified/read-only/won't-write/attach-message  indicator,
                     according to $status_chars
              %s     current sorting mode ($sort)
              %S     current aux sorting method ($sort_aux)
              %t     number of tagged messages *
              %u     number of unread messages *
              %v     Mutt version string
              %V     currently active limit pattern, if any *
              %>X    right justify the rest of the string and pad with "X"
              %|X    pad to the end of the line with "X"
              %*X    soft-fill with character "X" as pad

              For an explanation of "soft-fill", see the  $index_format  docu-
              mentation.

              * = can be optionally printed if nonzero

              Some  of  the  above sequences can be used to optionally print a
              string if their value is nonzero.  For  example,  you  may  only
              want  to  see  the  number  of flagged messages if such messages
              exist, since zero is not particularly meaningful.  To optionally
              print  a  string based upon one of the above sequences, the fol-
              lowing construct is used:

              %?<sequence_char>?<optional_string>?

              where sequence_char is a character from  the  table  above,  and
              optional_string   is  the  string  you  would  like  printed  if
              sequence_char is nonzero.   optional_string  may  contain  other
              sequences  as well as normal text, but you may not nest optional
              strings.

              Here is an example illustrating how to optionally print the num-
              ber of new messages in a mailbox:

              %?n?%n new messages.?

              You can also switch between two strings using the following con-
              struct:

              %?<sequence_char>?<if_string>&<else_string>?

              If the value of sequence_char is  non-zero,  if_string  will  be
              expanded, otherwise else_string will be expanded.

              You  can  force  the result of any printf(3)-like sequence to be
              lowercase by prefixing the sequence character with an underscore
              ("_") sign.  For example, if you want to display the local host-
              name in lowercase, you would use: "%_h".

              If you prefix the sequence character with a colon (":")  charac-
              ter, mutt will replace any dots in the expansion by underscores.
              This might be helpful with IMAP folders that don't like dots  in
              folder names.



       status_on_top
              Type: boolean
              Default: no

              Setting this variable causes the "status bar" to be displayed on
              the first line of the screen rather than  near  the  bottom.  If
              $help is set, too it'll be placed at the bottom.



       strict_threads
              Type: boolean
              Default: no

              If  set,  threading  will only make use of the "In-Reply-To" and
              "References:" fields when you  $sort  by  message  threads.   By
              default,  messages with the same subject are grouped together in
              "pseudo threads.". This may not always be desirable, such as  in
              a  personal  mailbox where you might have several unrelated mes-
              sages with  the  subjects  like  "hi"  which  will  get  grouped
              together.  See  also $sort_re for a less drastic way of control-
              ling this behavior.



       suspend
              Type: boolean
              Default: yes

              When unset, mutt won't stop when the user presses the terminal's
              susp key, usually "^Z". This is useful if you run mutt inside an
              xterm using a command like "xterm -e mutt".



       text_flowed
              Type: boolean
              Default: no

              When set, mutt will generate "format=flowed" bodies with a  con-
              tent type of "text/plain; format=flowed".  This format is easier
              to handle for some mailing software, and  generally  just  looks
              like  ordinary text.  To actually make use of this format's fea-
              tures, you'll need support in your editor.

              Note that $indent_string is ignored when this option is set.



       thorough_search
              Type: boolean
              Default: yes

              Affects the ~b and ~h search  operations  described  in  section
              "patterns".   If  set,  the headers and body/attachments of mes-
              sages to be searched are decoded  before  searching.  If  unset,
              messages are searched as they appear in the folder.

              Users  searching  attachments or for non-ASCII characters should
              set  this  value  because  decoding  also  includes  MIME  pars-
              ing/decoding  and  possible character set conversions. Otherwise
              mutt will attempt to match against the raw message received (for
              example  quoted-printable encoded or with encoded headers) which
              may lead to incorrect search results.



       thread_received
              Type: boolean
              Default: no

              When set, mutt uses the date received rather than the date  sent
              to thread messages by subject.



       tilde
              Type: boolean
              Default: no

              When  set, the internal-pager will pad blank lines to the bottom
              of the screen with a tilde ("~").



       time_inc
              Type: number
              Default: 0

              Along with $read_inc, $write_inc, and  $net_inc,  this  variable
              controls  the  frequency  with  which  progress updates are dis-
              played. It suppresses updates less than  $time_inc  milliseconds
              apart.  This  can improve throughput on systems with slow termi-
              nals, or when running mutt on a remote system.

              Also see the "tuning" section of the manual for performance con-
              siderations.



       timeout
              Type: number
              Default: 600

              When Mutt is waiting for user input either idling in menus or in
              an interactive prompt, Mutt would block until input is  present.
              Depending  on the context, this would prevent certain operations
              from working, like checking for new mail or keeping an IMAP con-
              nection alive.

              This  variable  controls how many seconds Mutt will at most wait
              until it aborts waiting for input, performs these operations and
              continues to wait for input.

              A value of zero or less will cause Mutt to never time out.



       tmpdir
              Type: path
              Default: ""

              This  variable  allows  you to specify where Mutt will place its
              temporary files needed for displaying  and  composing  messages.
              If this variable is not set, the environment variable $TMPDIR is
              used.  If $TMPDIR is not set then "/tmp" is used.



       to_chars
              Type: string
              Default: " +TCFL"

              Controls the character used to indicate mail addressed  to  you.
              The  first  character  is  the  one  used  when  the mail is not
              addressed to your address.  The second is used when you are  the
              only  recipient  of the message.  The third is when your address
              appears in the "To:" header field, but  you  are  not  the  only
              recipient  of  the  message.   The fourth character is used when
              your address is specified in the "Cc:" header field, but you are
              not the only recipient.  The fifth character is used to indicate
              mail that was sent by you.  The sixth character is used to indi-
              cate when a mail was sent to a mailing-list you subscribe to.



       trash
              Type: path
              Default: ""

              If  set,  this  variable  specifies the path of the trash folder
              where the mails marked for deletion will be  moved,  instead  of
              being irremediably purged.

              NOTE:  When  you  delete  a  message  in the trash folder, it is
              really deleted, so that you have a way to clean the trash.



       ts_icon_format
              Type: string
              Default: "M%?n?AIL&ail?"

              Controls the format of the icon title, as long as  "$ts_enabled"
              is  set.  This string is identical in formatting to the one used
              by "$status_format".



       ts_enabled
              Type: boolean
              Default: no

              Controls whether mutt tries to set the terminal status line  and
              icon  name.   Most terminal emulators emulate the status line in
              the window title.



       ts_status_format
              Type: string
              Default: "Mutt with %?m?%m messages&no messages?%?n? [%n NEW]?"

              Controls the format of  the  terminal  status  line  (or  window
              title), provided that "$ts_enabled" has been set. This string is
              identical in formatting to the one used by "$status_format".



       tunnel
              Type: string
              Default: ""

              Setting this variable will cause mutt to open a pipe to  a  com-
              mand instead of a raw socket. You may be able to use this to set
              up preauthenticated connections to your  IMAP/POP3/SMTP  server.
              Example:


              set tunnel="ssh -q mailhost.net /usr/local/libexec/imapd"


              Note: For this example to work you must be able to log in to the
              remote machine without having to enter a password.

              When set, Mutt uses  the  tunnel  for  all  remote  connections.
              Please see "account-hook" in the manual for how to use different
              tunnel commands per connection.



       uncollapse_jump
              Type: boolean
              Default: no

              When set, Mutt will jump to the next  unread  message,  if  any,
              when the current thread is uncollapsed.



       uncollapse_new
              Type: boolean
              Default: yes

              When  set,  Mutt  will  automatically  uncollapse  any collapsed
              thread that  receives  a  new  message.  When  unset,  collapsed
              threads  will  remain collapsed. the presence of the new message
              will still affect index sorting, though.



       use_8bitmime
              Type: boolean
              Default: no

              Warning: do not set this variable unless you are using a version
              of sendmail which supports the -B8BITMIME flag (such as sendmail
              8.8.x) or you may not be able to send mail.

              When set, Mutt will invoke $sendmail with  the  -B8BITMIME  flag
              when sending 8-bit messages to enable ESMTP negotiation.



       use_domain
              Type: boolean
              Default: yes

              When  set,  Mutt  will qualify all local addresses (ones without
              the "@host" portion) with the value of $hostname.  If unset,  no
              addresses will be qualified.



       use_envelope_from
              Type: boolean
              Default: no

              When  set, mutt will set the envelope sender of the message.  If
              $envelope_from_address is set, it will be  used  as  the  sender
              address.  If  unset, mutt will attempt to derive the sender from
              the "From:" header.

              Note that this information is passed to sendmail  command  using
              the -f command line switch. Therefore setting this option is not
              useful if the $sendmail variable already contains -f or  if  the
              executable  pointed  to  by  $sendmail  doesn't  support  the -f
              switch.



       use_from
              Type: boolean
              Default: yes

              When set, Mutt will generate the "From:" header field when send-
              ing  messages.  If unset, no "From:" header field will be gener-
              ated unless the user explicitly sets one using the "my_hdr" com-
              mand.



       use_ipv6
              Type: boolean
              Default: yes

              When set, Mutt will look for IPv6 addresses of hosts it tries to
              contact.  If this option is unset, Mutt will restrict itself  to
              IPv4 addresses.  Normally, the default should work.



       user_agent
              Type: boolean
              Default: yes

              When  set, mutt will add a "User-Agent:" header to outgoing mes-
              sages, indicating which version of mutt was used  for  composing
              them.



       visual
              Type: path
              Default: ""

              Specifies  the  visual editor to invoke when the "~v" command is
              given in the built-in editor.



       wait_key
              Type: boolean
              Default: yes

              Controls whether Mutt will ask you  to  press  a  key  after  an
              external   command   has   been   invoked  by  these  functions:
              <shell-escape>, <pipe-message>,  <pipe-entry>,  <print-message>,
              and <print-entry> commands.

              It  is also used when viewing attachments with "auto_view", pro-
              vided that the corresponding mailcap entry has  a  needsterminal
              flag, and the external program is interactive.

              When  set, Mutt will always ask for a key. When unset, Mutt will
              wait for a key only if the external command returned a  non-zero
              status.



       weed
              Type: boolean
              Default: yes

              When  set,  mutt  will weed headers when displaying, forwarding,
              printing, or replying to messages.



       wrap
              Type: number
              Default: 0

              When set to a positive value, mutt will wrap text at $wrap char-
              acters.   When  set  to a negative value, mutt will wrap text so
              that there are $wrap characters of empty space on the right side
              of  the terminal. Setting it to zero makes mutt wrap at the ter-
              minal width.

              Also see $reflow_wrap.



       wrap_headers
              Type: number
              Default: 78

              This option specifies the number of characters to use for  wrap-
              ping  an  outgoing message's headers. Allowed values are between
              78 and 998 inclusive.

              Note: This option usually shouldn't be changed.  RFC5233  recom-
              mends  a  line length of 78 (the default), so please only change
              this setting when you know what you're doing.



       wrap_search
              Type: boolean
              Default: yes

              Controls whether searches wrap around the end.

              When set, searches will wrap around the first  (or  last)  item.
              When unset, incremental searches will not wrap.



       wrapmargin
              Type: number
              Default: 0

              (DEPRECATED) Equivalent to setting $wrap with a negative value.



       write_bcc
              Type: boolean
              Default: yes

              Controls  whether mutt writes out the "Bcc:" header when prepar-
              ing messages to be sent.  Exim users may wish to unset this.  If
              mutt  is  set to deliver directly via SMTP (see $smtp_url), this
              option does nothing: mutt will never write out the "Bcc:" header
              in this case.



       write_inc
              Type: number
              Default: 10

              When  writing  a  mailbox,  a  message  will  be  printed  every
              $write_inc messages to indicate progress.  If set to 0,  only  a
              single message will be displayed before writing a mailbox.

              Also see the $read_inc, $net_inc and $time_inc variables and the
              "tuning" section of the manual for performance considerations.




ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+------------------+
       |ATTRIBUTE TYPE | ATTRIBUTE VALUE  |
       +---------------+------------------+
       |Availability   | mail/mutt        |
       +---------------+------------------+
       |Stability      | Volatile         |
       +---------------+------------------+
SEE ALSO
       iconv(1),   iconv(3),   mailcap(5),   maildir(5),   mbox(5),   mutt(1),
       printf(3), regex(7), strftime(3)

       The Mutt Manual

       The Mutt home page: http://www.mutt.org/

AUTHOR
       Michael  Elkins,  and  others.   Use <mutt-dev@mutt.org> to contact the
       developers.



NOTES
       This    software    was    built    from    source     available     at
       https://github.com/oracle/solaris-userland.    The  original  community
       source                was                downloaded                from
       ftp://ftp.mutt.org/pub/mutt/mutt-1.9.1.tar.gz

       Further information about this software can be found on the open source
       community website at http://www.mutt.org/.



Unix                            September 2002                       muttrc(5)