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mail, See also delivery; junk mail; messages
configuring scalable servers and, 396–399
filtering, 144–148
extension addresses, 145–146
maildrop, 148
procmail, 146–148
mail problems
local users can't send mail, 223
mail not accepted from remote hosts, 219
mail not delivered to local user, 220–221
mail not delivered to remote address, 221–222
mail not retrievable by users, 222
retrieving, 369–374
Fetchmail, 369–370
getmail, 371–374
mail exchangers
backup mail exchanger, 226–228
MX, and performance, 6–7
Mail-Followup-To, 133
mail hubs, 233–235
mail servers, See also specific servers
functions of, 396
Mail User Agents (MUAs)
changing mailbox formats and, 243
explained, 2–3
listed, 2
mailbox servers, See also IMAP (Internet Mail Access Protocol) servers; POP3 servers
basics, 235–236
changing mailbox formats and, 243
mailboxes
configuring boot script and, 66–68
configuring scalable servers and, 399–401
defined, 29
domain mailboxes
and Fetchmail, 370
and getmail, 373–374
format selection and location, 29–32
location and format basics, 239–245
migrating to maildir-format mail-boxes, 243–245
moving to home directories, 241–242
service, 400–401
serving, 327–328, See also IMAP (Internet Mail Access Protocol); POP3 servers
utilities. See dot-qmail utilities
maildir mailbox format
delivery and, 138
installation and, 31–32
installing UW-IMAP with support of, 344–349
mailbox locations and, 32
migrating to maildir-format mailboxes, 243–245
reliability and, 7
support by Courier-IMAP, 350
support by qmail-pop3d, 328
support by SolidPOP, 338
vs. mbox mailbox format, 31
maildir2mbox utility, 152–153
maildirmake command, 31, 153
maildirsmtp command, 232
maildirwatch utility, 153
Maildrop, 148, 434
mailing list management, 295–326
ezmlm, 297–305
basics, 297
ezmlm-idx, 298
installing, 298–301
subscribing and unsubscribing, 304–305
testing, 301–302
using, 302–304
Mailman, 315–324
basics, 315–316
creating mailing lists, 320–324
installing, 316–320
subscribing, 324
Majordomo, 305–315
basics, 305–306
creating lists with, 312–314
installing, 306–312
subscribing to Majordomo lists, 314–315
other MLMs, 324–325
simple mailing lists, 295–297
mailing list managers. See MLMs (mailing list managers)
mailing lists
in ezmlm
creating, 302–304
subscribing and unsubscribing, 304–305
in Mailman
creating, 320–324
subscribing, 324
in Majordomo
creating, 312–314
subscribing, 314–315
list archives, 23
simple, 295–297
subscribing extension addresses to, 146
support for qmail, 23–25
support of, 14
Mailman, 315–324
basics, 315–316
creating mailing lists, 320–324
installing, 316–320
subscribing, 324
mailsubj utility, 154
Majordomo, 305–315
basics, 305–306
creating lists with, 312–314
installing, 306–312
subscribing to Majordomo lists, 314–315
make check, 190–191
make, failures in VMailMgr installation, 379
man
man pages, 20–21
MANPATH, setting, 20
man /var/qmail directory, 17
management of qmail, See also queue management
management commands, 165–187
qmail-clean, 165
qmail-getpw, 166–167
qmail-local, 168–169
qmail-lspawn, 169
qmail-newmrh, 170
qmail-newu, 170
qmail-pop3d, 170–171
qmail-popup, 171–172
qmail-pw2u, 172–175
qmail-qmqpc, 175
qmail-qmqpd, 175
qmail-qmtpd, 176
qmail-qread, 176–177
qmail-qstat, 177
qmail-remote, 177–179
qmail-rspawn, 179
qmail-send, 179–180
qmail-showctl, 180–182
qmail-smtpd, 183
qmail-start, 184
qmail-tcpok, 184–185
qmail-tcpto, 185
splogger, 185–186
tcp-env, 186–187
qmailctl script, 159–165
interactive interface, 160–165
logging, 165
System V init.d script, 160
mandatory spam controls defined, 285, 287
Mastaler, Jason, and TMDA, 293, 440
mbox mailbox format, 29–30
and mailbox locations, 32
configuring home directories deliveries, 242
delivery and, 137
SolidPOP support of, 338
vs. maildirs, 31
me control file, 102–103
mess queue subdirectory contents, 18
mess822, 435
message construction features, 450
message headers, using to troubleshoot, 211–217
Cc fields, 215
Date fields, 214
Delivered-To field, 211–212
example header analysis, 216–217
From field, 215
Greenwich Mean Time (GMT) and, 213
Message-ID fields, 214
Received fields, 212–213
Resent-fields, 215
Return-Path field, 211
To fields, 215
Message-ID fields, and troubleshooting, 214
Message Transfer Agents. See MTAs (Message Transfer Agents)
messages, See also receiving messages; sending messages
adjusting message lifetimes/retry schedules, 192
compatibility with Sendmail, 13
construction of, 13
error messages, 457–464
bounce messages, 459–464
log messages, 457–459
how qmail sends and receives, 417–418
how they travel, 443–444
logging, 209
retry schedule, 427–428
removing messages from queues, 193–195
mini-qmail, See also QMTP (Quick Mail Transfer Protocol)
defined, 258
nullmailer and, 264
support of clients, 230
MLMs (mailing list managers), See also ezmlm; mailing list management; Mailman; Majordomo
basic functions of, 325
defined, 295
list maintenance function, 325
other Unix MLMs, 324–325
resending function, 325
moderated mailing lists defined, 2
modular system architecture
adding features and, 9
basics, 16
disadvantages of, 16
performance and, 7
security and, 6, 16
modules
listed, 16
receiving modules, 418–425
local, 419–420
qmail-queue, 423–425
remote, 421–423
sending local modules, 428–429
monolithic defined, 5
morerecpthosts control file, 103
msg example file listing, 125–126, 135
MTAs (Message Transfer Agents)
comparison of various, 8, 10, See also specific MTAs
defined, 1
interactions with MUAs, 3
monolithic, and security, 5
MUAs (Mail User Agents)
changing mailbox formats and, 243
explained, 2–3
listed, 2
Müller, Olivier, oMail-webmail and oSpam and, 435
multilog
advantages of, 36
troubleshooting, 202
while using recordio, 208
multiple host names, configuring, 115
multiple-recipients
delivery to. See delivery
multiple RCPT commands, 391–394
MX (mail exchanger), and performance, 6–7
MX records
backup mail exchanger and, 227–228
directing mail to virtual domains and, 380, 386
distributing incoming load with, 397–398
for smart hosts, 234
null client and, 229–230
nullmailer, 264
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