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-a
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Run Extended SMTP protocol.
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-b
|
Force a blank line at the end of a message.
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-C
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Append the @domain clause from the sender to any names in the header that do not have an
at sign (@) after
being rewritten by rule set 3. This option is not recommended. This flag allows mail with
headers with this form:
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From: user1@local
To: user2, user3@remote
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to be automatically rewritten as:
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From: user1@local
To: user2@local, user3@remote
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-c
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Do not include comments in addresses.
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-D
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Look for a Date: header line.
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-E
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Escape From lines to be >From (usually specified with -U).
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-e
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Avoid connecting to this mailer, which is expensive, normally;
any necessary connection occurs during a queue run.
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-F
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Look for a From: header line.
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-f
|
Look for an -f from flag, but only if this is a network forward
operation (that is, the mailer gives an error if the executing user does not have special
permissions).
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-g
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Send error messages from the MAILER-DAEMON instead of using the null
return address.
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-h
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Preserve uppercase in host names for this mailer.
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-I
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Select SMTP when contacting another sendmail.
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-L
|
Limit the line lengths
as specified in RFC 821.
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-l
|
Perform final
delivery because this mailer is local.
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-M
|
Look for a Message-Id: header line.
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-m
|
Enable the mailer to send a message to multiple users on the same host in one transaction.
When a $u macro occurs in the argv part of the mailer
definition, that field is repeated as necessary for all qualifying users. The L= field of the mailer description can be used to limit the total length of the $u expansion.
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-n
|
Do not insert a UNIX-style From line on the front of the message.
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| -P |
Look for a Return-Path: line.
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-p
|
Always add local host name to the MAIL From: line of SMTP, even if there
already is one.
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-r
|
Send an -r flag. Performs the same function as -f.
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-S
|
Do not reset the user ID before calling the mailer. This flag would be used in a secure
environment where sendmail ran as root. This flag
could be used to avoid forged names.
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-s
|
Strip quote characters from the name before calling
the mailer.
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-U
|
Look for UNIX-style From lines with the UUCP-style remote from <host> on the end.
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-u
|
Preserve uppercase in
user names for this mailer.
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-X
|
Use the hidden dot algorithm as specified in RFC 821; basically,
any line beginning with a dot will have an extra dot appended (to be stripped at the other
end). This flag ensures that lines in the message containing a dot do not terminate the
message prematurely.
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-x
|
Look for a Full-Name: header line.
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-7
|
Strip output to 7 bits.
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