Complete Contents
About This Guide
Chapter 1 Getting Started with Netscape Messaging Server
Chapter 2 Configuring POP, IMAP, and HTTP Services
Chapter 3 Configuring SMTP Services
Chapter 4 Managing Mail Users and Mailing Lists
Chapter 5 Managing the Message Store
Chapter 6 Security and Access Control
Chapter 7 Working with SMTP Plugins
Chapter 8 Filtering Unsolicited Bulk Email
Chapter 9 Message Routing
Chapter 10 Monitoring and Maintaining Your Server
Chapter 11 Logging and Log Analysis
Chapter 12 Program Delivery
Chapter 13 Messaging Multiplexor
Appendix A Command Line Utilities
Appendix B sendmail Migration and Compatibility
Appendix C SNMP MIB
Glossary
Index
Messaging Server Administrator's Guide:
Contents


 SymbolsABCDEFGHIJKLMNOPQRSTUVWXYZ 



Symbols
.forward files 461
/dev/null directory 461
/etc/aliases files 449
  sendmail compatibility 460
  unix2ldif utility 443
/etc/passwd files 443
/etc/security/shadow files 451
/etc/shadow files 443, 451
/etc/shells file 336, 341
/server-root/bin/msg/admin/bin directory 457
/server-root/userdb/ldap/tools directory 456
/usr/lib directory 458

A
access control
  access to TCP services, overview 189
  client access 78
  creating access filters 198
  filter syntax 191
  HTTP service 78, 189
  IMAP service 78, 189
  message store 154
  POP service 78, 189
  SMTP service 112, 114, 189
  TCP wrappers 189
action field (UBE filters) 220, 221, 230
active queue 115
address completion domain
  sendmail migration 447
  specifying 91
  unix2ldif utility 447
addressing information
  Address tab 107
  alternate addresses 129, 139, 259
  domain completion 91
  envelope rewrite methods 108
  for mailing lists 139
  for mail users 128
  forwarding addresses 132
  From address rewrite style 109
  host name 259
  local domains 92
  primary address 128, 139, 259
  recipient search methods 110
  user attributes 259
  verifying recipients 97
address rewrite style
  for routing to remote MTA 268
  From address 109
administrative domains 45, 63, 186
administrator access control
  configuring 185
  to server as a whole 187
  to server tasks 188
aging policies
  message store 162
  number of days 162
  number of messages 162
  size of mailbox 162
  specifying 162
  to control disk space 283
alarm attributes
  disk space 167
  overview 437
  response time 285
aliases
  sendmail compatibility 460
  sendmail emulator 462
aliases files
  include directives 449
  key value format 448
  sendmail migration 448
  unix2ldif utility 448
alternate email addresses 129, 139
alternate search methods
  and performance 290
  custom domain 110, 267
  routing 266
  specifying 110
  truncated domain 110, 267
  user ID 110, 267
anonymous login 72
anti-relay (UBE filter) 247
anti-relay plug-in
  configuring 250
  enabling 249
  relaying defenses 244
  source code 249
A records 28, 275
argument field (UBE filters) 220
authentication
  certificate-based 352
  HTTP 72
  IMAP 72
  Multiplexor 352
  password-based 146
  POP 72
  SMTP 112, 146, 173
automatic reply
  echo mode 105
  reply mode 105, 134
  settings 133
  specifying default information 104
  vacation mode 105

B
banners
  IMAP 72
  POP 72
  SMTP 408
bsmtp command 462

C
CA certificates
  installing 180
  managing 181
case tag (UBE filters) 219
certificate-based login 74, 184, 352
certificates
  installing, server 179
  installing, trusted CA 180
  managing 181
  obtaining 177
  requesting, server 178
chkuniq utility
  description 453
  options 454
ciphers
  about 181
  selecting 183
command-line utilities
  configutil 406
  counterutil 410
  deliver 410
  file locations for 404
  getconf script 408
  hashdir 412
  imscripter 413
  mailq 415
  mboxutil 417
  MoveUser 419
  NscpMsg 423
  overview 402
  processq 424
  qconvert 425
  quota 427
  readership 427
  reconstruct 428
  setconf script 408
  stored 433
  upgrade 435
  usage requirements 405
configuration directory 28, 34, 64, 65
configutil
  command-line utility 305, 406
  scripts 408
control directory 116
counterutil command-line utility 410
custom domain, search by 110, 267

D
Database Manager, and sendmail migration 455
dead.letter files 461
deferred
  delivery 96
  queue processing 103
deferred directory 116
deferred queue 115
delegated administration 186
deliver command-line utility 410
delivery options
  deferred delivery 96
  mail users 130
  POP/IMAP delivery 131
  program delivery 94, 131
  specifying 93
  Unix delivery 132
  Unix mail folders 93
deployment considerations
  DNS 27
  enterprise vs. ISP 32
  firewalls 31
  LDAP directory 28
  mail-account migration 32
  overview 25
  redundancy 30
  separation of services 29
  sizing and topology 26
dial-up connections
  limiting 289
  performance 289
directories
  for installed server files 40
  for log files 313
  message queue 115
  message store 150
disk quota
  configuring 156
  grace period 159
  monitoring 167
  to control disk space 283
  warning message 159
disk space
  aging policies 283
  controlling usage of 282
  disk quotas 283
  message size limits 283
  monitoring 167, 282
  quotas for 156
  RAID technology 295
  reserving 100
  reserving for the message queue 284
DNS
   See Domain Name System (DNS)
DNS records
  A records 275
  MX records 275
  PTR records 276
Domain Name System (DNS)
  A records 275
  deployment considerations 27
  message routing
  MX records 275
  overview 273
  PTR records 276
domains
  access domain 131
  address completion 91
  defined 90
  Domain Name System (DNS)
  language configuration 59
  local domain 92
  remote domain 90
  search methods 110
  See also administrative domains
  virtual 354

E
echo mode 105, 134
email-only members (of a group) 136
Enable Statistics Collection box 304
encryption
  accelerators for 177
  defined 488
  Multiplexor 351
end-user help, configuring access to 55
entry format, MIB 469
envelope fields (UBE filters) 225
envelope rewrite methods 108
envonly tag (UBE filters) 219
error handling 106
ETRN command 103
events, reporting 300
EXPN command 102
external modules (PKCS #11) 177

F
facility categories (for logging) 310
failover and redundancy 30
file and directory organization 40
filenames
  for installed server files 40
  for log files 311
filtering mail
  program delivery 326
  UBE 215
filters
  for program delivery 326
  for UBE. See UBE filters
firewalls 31
forwarding addresses 132, 448
FQDN
   See Fully Qualified Domain Name
free disk space, reserving 100
From address, rewriting 109
Fully Qualified Domain Name (FQDN) 274

G
groups
  See also mailing lists
  email-only members of 136
  mailing lists 122
  Members tab 136

H
hardware configuration, and performance 295
hashdir command-line utility 412
header fields (UBE filters) 225
hiding a host name 129
HKEY_LOCAL_MACHINE 391
host, defined 490
host completion domain
  sendmail migration 447
  unix2ldif utility 448
host name hiding 28, 129, 140
host name resolution
  See IP addresses, reverse lookups
HP OpenView 299, 468
HTTP service
  access control filters 198
  anonymous login 72, 83
  certificate-based login 74
  client access control 78
  configuring 82
  connection settings 83
  connections per process 75
  customizing 86
  disabling 83
  dropping idle connections 77
  enabling 83
  logging out clients 77
  login requirements 72
  message settings 83
  MTA settings 83
  number of processes 74
  password-based login 73, 83
  performance parameters 74
  port numbers 70
  process settings 84
  proxy authentication 200
  security 171
  session ID 171
  specialized web server 82
  SSL port 72
  starting and stopping 61, 281
  threads per process 76

I
idle connections, dropping 77
ImapMMP 396
ImapMMP.config 374, 383
ImapMMP.sh 376
ImapProxy 396
ImapProxy command 367
IMAP service
  access control filters 198
  anonymous login 72, 80
  banner 72, 81
  certificate-based login 74, 184
  client access control 78
  configuring 80
  connection settings 80
  connections per process 75
  disabling 80
  dropping idle connections 77
  enabling 80
  login requirements 72
  number of processes 74
  password-based login 73, 172
  password-based long 80
  performance parameters 74
  port numbers 70, 71
  process settings 80
  readership utility 427
  shared folders 23, 427
  SSL 71, 175
  SSL port 71
  starting and stopping 61, 281
  threads per process 76
imports, MIB 471
imscripter command-line utility 413
INBOX, default mailbox 417
include alias 461
include directives 449
INSECURE-PROGRAM-DELIVERIES file 331, 339
installation
  configurations for Messaging Server 33
  directory 40
  Messaging Server 38
instance directory 41
instances. See server instances
internal modules (PKCS #11) 177
IP addresses, reverse lookups
  performance impact 289
  specifying 98

K
key value format 448

L
label field (UBE filters) 218
LDAP Data Interchange Format files 442
LDAP directory
  configuring lookups in user directory 63
  Database Manager 455
  sendmail migration 454
  viewing settings in configuration directory 65
ldapmodify command 455, 456
LDAP search URLs 142
LDIF files 442
ldifsplit utility
  add.ldif 452
  mod.ldif 452
  options 453
  running 451
local domain 92
logging
  analyzing logs 320
  architecture of 314
  directories for log files 313
  facility categories 310
  filenames 311
  format of log entries 312
  formats for specific event types 321
  levels of 309
  Mailbox-Deliver format 323
  options 315
  services that are logged 308
  severity levels 309
  SMTP-Accept format 321
  SMTP-Deliver format 322
  syslog 309, 312
  viewing logs 318
logical queue 115
login
  anonymous 72
  certificate-based 74, 184
  password-based 73, 172

M
mail accounts. See mail users
mailAlternateAddress attribute 259
mailboxes
  aging policies for 162
  default mailbox for delivery 417
  INBOX 417
  managing 166
  mboxutil utility 166
  naming conventions for 417
  quota usage 427
  reconstructing 428
  reconstruct utility 166
  repairing 166
  size and performance 290
mail exchange record 275
mailHost attribute 259, 268
mailing lists
  accessing an existing group 138
  adding list (email-only) members 144
  address (primary) 139
  creating a new group 135
  duplicate checks for unique members 272
  dynamic membership criteria 142
  email-only members 136
  expansion and delivery 270
  host name hiding 140
  LDAP search URLs 142
  list members 141
  list owners 141
  Mail tab 136, 139
  Members tab (of group) 136
  message-rejection actions 146
  nested lists 273
  Netscape Console access to 135
  recipients per envelope 273
  restrictions on message posting 145
  routing to dynamic members 272
  routing to email-only members 272
  routing to unique members 272
  verifying 102
mailq command-line utility 415
mailRoutingAddress attribute 108, 259, 268
Mail tab 124, 128, 136, 139
mail users
  accessing an existing user 127
  address (primary) 128
  addresses, specifying 128
  alternate addresses 129
  auto-reply mode 134
  auto-reply settings 133
  creating a new user 124
  delivery-options configuration 130
  echo mode 134
  forwarding addresses for 132
  host name hiding 129
  Mail tab 124, 128
  migration of accounts 32
  Netscape Console access to 124
  POP/IMAP delivery option 131
  program delivery option 131
  Unix delivery option 132
  vacation mode 134
managed device 299
managed device-initiated communication 300
  See also traps
managed objects
  See also variables
  communication with 300
  defined in MIB 472
  MIB 468
Management Information Base
  See MIB
master agents
  and Admin Server 299
  in SNMP 299
  installation 299
  in the MIB 468
match criteria (UBE filters) 223
mboxutil command-line utility 417
Members tab 136
message field (UBE filters) 218, 227
message queue
  active queue 115
  alternate paths for queue storage 115, 118
  control directory 116
  deferred delivery 96
  deferred directory 116
  deferred queue 115
  distribution for improved performance 291
  logical 115
  mailq utility 415
  messages directory 116
  physical 115
  processq utility 424
message routing
  A records 275
  Directory Server 258
  DNS 273
  mailing list expansion 270
  MX records 275
  PTR records 276
  routing attributes 259
  SMTP routing table 264
messages directory 116
message size
  and performance 289
  limiting 103
  SIZE command 103
message store
  access control 154
  administrator access 154
  aging policies 162
  cleaning up messages 154
  configuring disk quotas 156
  configuring partitions 160
  default partition 161
  deleting messages 154
  directory layout 150
  distribution for improved performance 291
  expunging messages 154
  maintenance and recovery procedures 165
  mboxutil utility 417
  MoveUser utility 419
  overview 149
  partitions 159
  primary partition 160
  ProxyAuth user 154
  RAID technology 161
  reconstruct utility 428
  stored utility 165
Message Transfer Agent (MTA)
  HTTP settings 83
  routing to remote MTA 268
  See also SMTP service
  specifying number of hops 99
  thread settings and performance 292
MIB
  activating 468
  and subagent 301
  data types of MIB variables 470
  format of entries 469
  imports 471
  installation 468
  MADMAN 468
  managed objects 468, 472
  Messaging Server MIB file 300, 476
  MTA attributes 473
  MTA table 473
  MTA variables 473
  object identifier 468
  static variables 472
  traps 301, 474
  variables 300, 301, 468, 472
MigrateUnixSpool utility
  administrators 457
  example 458
  location of 457
  syntax of 457
  users 457
mmp-setup 374
MoveUser command-line utility 419
Multiplexor
  $CONFIG_FILE 374
  authentication 352
  BacksidePort 360
  Banner 360
  BaseDN 360
  BindDN 355, 360
  BindPass 355, 360
  CanonicalVirtualDomainDelim 355, 361
  Capability 361
  certificate-based authentication 352, 353
  CertMapFile 361
  certmap plugins 352
  command line options 367
  configuration (NT) 390
  configuration (Unix) 378
  configuration parameters 359
  configuration prompts (NT) 391
  DNComps 352
  features 348
  files (NT) 387
  files (Unix) 373, 374
  FilterComps 352
  how it works 350
  ImapMMP 374, 396
  ImapMMP.config 374, 383
  ImapMMP.sh 376
  ImapProxy 367, 396
  ImapProxy file 374
  installation (NT) 386
  installation (Unix) 372
  instances (multiple) 356
  LDAPHost 361
  LdapURL 355
  ListenPort 362
  LogDir 362
  LogLevel 362
  MailHostAttrs 362
  message topology 384
  mmp-instancename 387
  MMPRoot (Unix) 373
  mmp-setup 374, 375
  netscape.mp.conf 377
  NumThreads 363
  PopMMP 374, 376, 396
  PopMMP.config 374
  PopProxy 396
  PopProxy command 367
  PopProxy file 374
  port number (Unix) 379
  PreAuth 355, 363
  pre-authentication 353
  removing (NT) 399
  removing (Unix) 398
  running (NT) 397
  running (Unix) 395
  ServerDownAlert 363
  SpoofMessageFile 363
  SSLBacksidePort 363
  SSLCertFile 364, 370
  SSLCertName 364
  SSLCertNickname 371
  SSLCipherSecs 364
  SSLCipherSpecs 371
  SSL command line options 370
  SSLEnable 365
  SSLKeyFile 365, 370
  SSLKeyPasswd 365, 371
  SSLListenPort 365
  SSLSecmodFile 365, 370
  StoreAdmin 366
  store administrator 352
  UidSearch 355, 366
  uninstalling 398
  vdmap 354
  VDomain 355
  VirtualDomainDelim 366
  VirtualDomainFile 366
  virtual domains 354
MX records 28, 275

N
negation modifier (UBE filters) 230
netscape.mp.conf 377
Netscape Console
  Messaging Server access from 46
  performing all tasks with 49
  performing typical tasks with 47
  using 44
netscape-mail.mib 468
network information
  exchanging 300
  monitoring 299
  PDUs 300
  requests for 300
  verifying 305
network management station (NMS)
  and master agent 301
  and SNMP 299
  and subagent 301
  defined 468
  network management station-initiated communication 300
nicknames
  message store partitions 161
  sendmail migration 447
NIS and sendmail migration 450
NMS
  See network management station
NscpMsg command-line utility 423
nsmailagent, SNMP subagent on Unix 301

O
object identifier, MIB 470

P
partitions
  adding 161
  configuring for message store 160
  default 161
  message store 159
  nicknames 161
  pathnames 161
  primary 160
  RAID technology 161
passwd files
  and sendmail migration 450
  unix2ldif utility 450
password authentication
  See also login
  for mailing-list posting 146
  HTTP service 73
  IMAP service 73
  POP service 73
  SMTP service 173
  to LDAP user directory 65
password file (for SSL) 178
password login 73, 172
pathnames, to installed files and directories 40
performance
  address lookups per message 294
  address rewrite style 290
  administration server activity 293
  alternate search methods 290
  and dial-up connections 289
  configuration of logging services 290
  directory server activity 294
  disk speed 291
  hardware configuration 295
  mailbox size 290
  message queue distribution 291
  message size 289
  message store distribution 291
  MTA thread settings 292
  overview 286
  plug-in API 290
  POP, IMAP, and HTTP services 287
  RAID technology 295
  ratio of outbound sends 295
  reverse IP address lookups 289
  server locations 294
  SMTP services 288
  users per disk 287
  verifying recipient addresses 289
performance parameters
  connections per process 75
  number of processes 74
  threads per process 76
physical queue 115
PKCS #11
  internal and external modules 177
plugins.cfg file 236
plug-ins. See SMTP plug-ins, UBE filters
PopMMP 376, 396
PopMMP.config 374
PopProxy 396
POP service
  access control filters 198
  banner 72
  certificate-based login 184
  client access control 78
  configuring 78
  connections per process 75
  dropping idle connections 77
  login requirements 72
  number of processes 74
  password-based login 73, 172
  performance parameters 74
  port numbers 70
  SSL 175
  starting and stopping 61, 281
  threads per process 76
postmaster account
  checking 279
  defined 279
pre-authentication (Multiplexor) 353
primary email address 128, 139
processes
  number of 74
  starting and stopping 281
processq command-line utility 424
program delivery
  /etc/shells file 336, 341
  batch files 330
  changing programs 333, 335
  default mode 339
  designating programs 331, 332
  disabling, Unix 343
  disabling, Windows NT 346
  enabling 330
  failures of 327, 333
  INSECURE-PROGRAM-DELIVERIES file 331, 337, 339
  installing programs 341, 345
  links, Unix 331
  mailboxes 327
  modes of operation 329
  multiple programs 333, 335
  non-secure mode 329, 331, 333, 335, 338, 339
  overview of 325
  paths 332, 335
  POP/IMAP delivery 332
  properties dialog box 332
  restrictions in programs 338, 344
  root, running programs as 340, 342
  scripts 330
  secure mode 329, 332, 334, 338, 339
  security 327, 328, 330
  sendmail compatibility 461
  setup, Unix 340
  setup, Windows NT 344
  shells, valid list of (Unix) 341
  sorting mail 326
  specifying 131
  suspending, Unix 342
  suspending, Windows NT 345
  SUSPEND-PROGRAM-DELIVERIES file 342
  trusted directory 328, 329, 331
  trusted programs 328
  Unix delivery 332
  Unix shells 336
protocol data units (PDUs) 300, 474
protocol-level SMTP plug-ins 203, 212
ProxyAuth user
  HTTP service 200
  message store 154
  MoveUser utility 421

Q
qconvert command-line utility 425
quota command-line utility 427
quotas, disk space 156

R
RAID technology
  for message store 161
  performance 295
readership command-line utility 427
recipient addresses
  envelope, rewriting 108
  verifying 97
  verifying, and performance 289
reconstruct command-line utility 428
recovery tasks
  mailboxes 166
  overview 285
  reconstruct utility 428
redundancy and failover 30
regular expressions (in UBE filters) 223
relaying 216, 245
reply mode 105
requests for network information 300
reserving free disk space 100
response time
  alarm attributes 285
  improving 285
  overview 284
reverse IP address lookups 98
root
  program delivery 337, 342
  running programs as (program delivery) 340
routing aliases
  sendmail 446
  unix2ldif utility 446
routing messages
  Address tab 107
  mail exchange 275
  overview 258
  routing attributes 263
  specifying routing information 107
  to remote MTA 264
routing table, editing entries 111
RUN action (UBE filters) 223

S
Safe user ID box 342
search methods
  custom domain 110, 267
  specifying alternate 110
  truncated domain 110, 267
  user ID 110
security
  about 170
  certificate-based login 74, 184
  client access controls 78
  client access to TCP services 189
  HTTP service 78, 171
  IMAP service 78
  password-based login 73
  POP service 78
  program delivery 327, 328
  SMTP service 112
  SSL 175
sendmail.cf files 464
sendmail command
  starting Messaging Server 459
  V8 465
sendmail compatibility
  aliases 460
  alternate names 462
  bsmtp command 462
  command line 458
  functional compatibility 460
  include alias 461
  lists (mailing) 461
  mail, delivering to files 461
  mail, delivering to programs 461
  mail forwarding 460
  mailing lists 461
  mailq command 462
  Messaging Server, starting 459
  names of (alternate) 462
  network interface 460
  newaliases command 462
  overview 458
  sendmail command 462
sendmail emulator
  aliases 462
  alternate names 462
  mailq command 459
  names, alternate 462
  operating modes 460
  options 462, 463, 464
  sendmail.cf files 464
  V8 options 465
sendmail migration
  address completion domain 447
  addresses, duplicate 453
  aliases files 448
  and NIS maps 450
  basic steps 441
  chkuniq utility 453
  DNs, duplicate 453
  host completion domain 447
  LDAP directory, updating 454
  LDAP entries, creating/converting to 442
  ldapmodify command 455, 456
  LDIF files 442
  ldifsplit utility 451
  location of 443
  mail, moving 456
  MigrateUnixSpool utility 456
  nicknames 447
  passwd files 450
  routing aliases 446
  spool files, mail moving 456
  steps 441
  syntax 443
  unix2ldif utility 442
  user IDs, duplicate 453
server certificates
  installing 179
  managing 181
  requesting 178
Server Configuration tab 49
server group 34
server information, viewing 54
server instances 36
server root 33, 37, 40
Server Tasks tab 47
service banners 72
services
  enabling and disabling 70
  HTTP 69
  IMAP 69
  logging of 308
  POP 69
  SMTP 90
  starting and stopping 61, 281
setconf script 408
severity levels (of logging) 309
shared folders, IMAP 23, 427
Simple Mail Transfer Protocol
  See SMTP service
site language configuration 58
SIZE command 103
sizing considerations 26
SMTP-Accept
  and plug-ins 204, 205
  log format for 321
SMTP authentication 146
SMTP-Deliver
  and plug-ins 204
  log format for 322
SMTP plug-ins 203
  activating/deactivating 208
  API for 206
  configuring 209, 210
  installing 206, 210
  manual configuration of 210
  Netscape Console configuration of 206
  pre-SMTPaccept 203, 212
  protocol-level 203, 212
  SMTP-Accept 204, 205
  SMTP-Deliver 204
  uninstalling 207, 212
SMTP routing table 264
SMTP service
  access control filters 198
  authenticated SMTP 112, 173
  banner 408
  certificate-based login 175
  deferred delivery 96
  enabling optional features 100
  ETRN command 103
  EXPN command 102
  login requirements 173
  message queue 114
  MTA hops 99
  overview 90
  password-based login 173
  port number 175, 257
  routing overview 255
  routing table 264
  routing table entries 111
  See also SMTP plug-ins
  SIZE command 103
  starting and stopping 61, 281
  VRFY command 101
SNMP agents
  See master agents and subagents
SNMP settings, checking 305
SSL
  certificates 177
  ciphers 181
  enabling 181
  hardware encryption accelerators 177
  installing CA certificates 180
  installing server certificates 179
  internal and external modules 177
  managing certificates 181
  overview 175
  password file for 178
  requesting server certificates 178
  turning on 183
sslpassword.conf file 178
stored command-line utility 433
subagents 301
  in SNMP 300
  in the MIB 469
  nsmailagent 301
  retrieving information 301
  starting 304
  stopping 304
SUSPEND-PROGRAM-DELIVERIES file 342, 345
syslog 309, 312

T
TCP client access control
  address-spoofing detection 197
  examples 196
  EXCEPT operator 194
  filter syntax 191
  host specification 194
  how access filters work 189
  identd service 195, 197
  Netscape Console interface for 198
  overview 189
  username lookup 195, 197
  virtual domains 198
  wildcard names 192
  wildcard patterns 193
TCP wrappers 189
threads per process 76
topologies for deployment 26, 29, 30, 32
traps
  defined 474
  listed 475
  managed device-initiated communication 300, 474
  MIB 301, 474
  nsMailServerDown 475
  nsMailServerNoResponse 475
  nsMailServerStart 475
  server events 474
truncated domain, search by 110, 267
trusted directory (program delivery) 328

U
UA. See User Agent (UA)
UBE (Defined) 215
UBEfilter.cfg file 236
UBEfilter.opt file 236
UBE filters 215
  See also UBE plug-in
  action field 220, 221, 230
  activating/deactivating 234
  anti-relay 247
  argument field 220
  case tag 219
  changing order of 234
  comments in 238
  configuration files 236
  creating 231, 237
  editing 233, 237
  envelope vs. header fields 225
  envonly tag 219
  examples of 239
  extending, with RUN action 242
  extending, with shared library 243
  format of 218
  label field 218
  manual configuration of 235
  match criteria 219
  match criterion 223
  message field 218, 227
  negation modifier 230
  Netscape Console configuration of 230
  omitting parts of 237
  options 235
  overview 217
  regular expressions in 223
  RUN action 223
  special names (for message field) 227
  UBE defined 215
  UBE plug-in 216, 236
UBE plug-in
  activating/deactivating 231
  extending 242
  overview 216
UidSearch 355
unix2ldif utility
  address completion domain 447
  aliases files 448
  aliases files, multiple passes 449
  forwarding alias LDAP entries 448
  HostCompletionDomain 448
  host completion domain 448
  input sources 443
  Mail Group LDAP entries 448
  mailHost value 446
  NIS maps 450
  passwd files 450
  routing aliases 446
  shadow files 451
Unix delivery 132, 332
unsolicited bulk email. See UBE filters
upgrade command-line utility 435
User Agent (UA) 90
user directory 28, 34, 63
user ID, search by 110, 267
user login. See login
user names, verifying 101
users
  See also mail users
  mail accounts 122

V
vacation mode 105, 134
variables
  MIB 301, 468, 472
  MTA table variables 473
  static variables 472
vdmap (Multiplexor) 354
VDomain 355
verbosity (of logging) 309
verifying
  mailing list 102
  recipient addresses 97
  SNMP settings 305
  user names 101
virtual domains
  controlling access to 198
  Multiplexor 354
  properties of 355
VRFY command 101
 

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