1 # Global Postfix configuration file. This file lists only a subset
2 # of all parameters. For the syntax, and for a complete parameter
3 # list, see the postconf(5) manual page (command: "man 5 postconf").
5 # For common configuration examples, see BASIC_CONFIGURATION_README
6 # and STANDARD_CONFIGURATION_README. To find these documents, use
7 # the command "postconf html_directory readme_directory", or go to
8 # http://www.postfix.org/BASIC_CONFIGURATION_README.html etc.
10 # For best results, change no more than 2-3 parameters at a time,
11 # and test if Postfix still works after every change.
15 # The compatibility_level determines what default settings Postfix
16 # will use for main.cf and master.cf settings. These defaults will
19 # To avoid breaking things, Postfix will use backwards-compatible
20 # default settings and log where it uses those old backwards-compatible
21 # default settings, until the system administrator has determined
22 # if any backwards-compatible default settings need to be made
23 # permanent in main.cf or master.cf.
25 # When this review is complete, update the compatibility_level setting
26 # below as recommended in the RELEASE_NOTES file.
28 # The level below is what should be used with new (not upgrade) installs.
30 compatibility_level = 2
34 # The soft_bounce parameter provides a limited safety net for
35 # testing. When soft_bounce is enabled, mail will remain queued that
36 # would otherwise bounce. This parameter disables locally-generated
37 # bounces, and prevents the SMTP server from rejecting mail permanently
38 # (by changing 5xx replies into 4xx replies). However, soft_bounce
39 # is no cure for address rewriting mistakes or mail routing mistakes.
43 # LOCAL PATHNAME INFORMATION
45 # The queue_directory specifies the location of the Postfix queue.
46 # This is also the root directory of Postfix daemons that run chrooted.
47 # See the files in examples/chroot-setup for setting up Postfix chroot
48 # environments on different UNIX systems.
50 #queue_directory = /var/spool/postfix
52 # The command_directory parameter specifies the location of all
55 command_directory = /usr/sbin
57 # The daemon_directory parameter specifies the location of all Postfix
58 # daemon programs (i.e. programs listed in the master.cf file). This
59 # directory must be owned by root.
61 daemon_directory = /usr/lib/postfix/sbin
63 # The data_directory parameter specifies the location of Postfix-writable
64 # data files (caches, random numbers). This directory must be owned
65 # by the mail_owner account (see below).
67 data_directory = /var/lib/postfix
69 # QUEUE AND PROCESS OWNERSHIP
71 # The mail_owner parameter specifies the owner of the Postfix queue
72 # and of most Postfix daemon processes. Specify the name of a user
73 # account THAT DOES NOT SHARE ITS USER OR GROUP ID WITH OTHER ACCOUNTS
74 # AND THAT OWNS NO OTHER FILES OR PROCESSES ON THE SYSTEM. In
75 # particular, don't specify nobody or daemon. PLEASE USE A DEDICATED
80 # The default_privs parameter specifies the default rights used by
81 # the local delivery agent for delivery to external file or command.
82 # These rights are used in the absence of a recipient user context.
83 # DO NOT SPECIFY A PRIVILEGED USER OR THE POSTFIX OWNER.
85 #default_privs = nobody
87 # INTERNET HOST AND DOMAIN NAMES
89 # The myhostname parameter specifies the internet hostname of this
90 # mail system. The default is to use the fully-qualified domain name
91 # from gethostname(). $myhostname is used as a default value for many
92 # other configuration parameters.
94 #myhostname = host.domain.tld
95 #myhostname = virtual.domain.tld
97 # The mydomain parameter specifies the local internet domain name.
98 # The default is to use $myhostname minus the first component.
99 # $mydomain is used as a default value for many other configuration
102 #mydomain = domain.tld
106 # The myorigin parameter specifies the domain that locally-posted
107 # mail appears to come from. The default is to append $myhostname,
108 # which is fine for small sites. If you run a domain with multiple
109 # machines, you should (1) change this to $mydomain and (2) set up
110 # a domain-wide alias database that aliases each user to
111 # user@that.users.mailhost.
113 # For the sake of consistency between sender and recipient addresses,
114 # myorigin also specifies the default domain name that is appended
115 # to recipient addresses that have no @domain part.
117 # Debian GNU/Linux specific: Specifying a file name will cause the
118 # first line of that file to be used as the name. The Debian default
121 #myorigin = /etc/mailname
122 #myorigin = $myhostname
123 #myorigin = $mydomain
127 # The inet_interfaces parameter specifies the network interface
128 # addresses that this mail system receives mail on. By default,
129 # the software claims all active interfaces on the machine. The
130 # parameter also controls delivery of mail to user@[ip.address].
132 # See also the proxy_interfaces parameter, for network addresses that
133 # are forwarded to us via a proxy or network address translator.
135 # Note: you need to stop/start Postfix when this parameter changes.
137 #inet_interfaces = all
138 #inet_interfaces = $myhostname
139 #inet_interfaces = $myhostname, localhost
141 # The proxy_interfaces parameter specifies the network interface
142 # addresses that this mail system receives mail on by way of a
143 # proxy or network address translation unit. This setting extends
144 # the address list specified with the inet_interfaces parameter.
146 # You must specify your proxy/NAT addresses when your system is a
147 # backup MX host for other domains, otherwise mail delivery loops
148 # will happen when the primary MX host is down.
151 #proxy_interfaces = 1.2.3.4
153 # The mydestination parameter specifies the list of domains that this
154 # machine considers itself the final destination for.
156 # These domains are routed to the delivery agent specified with the
157 # local_transport parameter setting. By default, that is the UNIX
158 # compatible delivery agent that lookups all recipients in /etc/passwd
159 # and /etc/aliases or their equivalent.
161 # The default is $myhostname + localhost.$mydomain + localhost. On
162 # a mail domain gateway, you should also include $mydomain.
164 # Do not specify the names of virtual domains - those domains are
165 # specified elsewhere (see VIRTUAL_README).
167 # Do not specify the names of domains that this machine is backup MX
168 # host for. Specify those names via the relay_domains settings for
169 # the SMTP server, or use permit_mx_backup if you are lazy (see
170 # STANDARD_CONFIGURATION_README).
172 # The local machine is always the final destination for mail addressed
173 # to user@[the.net.work.address] of an interface that the mail system
174 # receives mail on (see the inet_interfaces parameter).
176 # Specify a list of host or domain names, /file/name or type:table
177 # patterns, separated by commas and/or whitespace. A /file/name
178 # pattern is replaced by its contents; a type:table is matched when
179 # a name matches a lookup key (the right-hand side is ignored).
180 # Continue long lines by starting the next line with whitespace.
182 # See also below, section "REJECTING MAIL FOR UNKNOWN LOCAL USERS".
184 #mydestination = $myhostname, localhost.$mydomain, localhost
185 #mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
186 #mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain,
187 # mail.$mydomain, www.$mydomain, ftp.$mydomain
189 # REJECTING MAIL FOR UNKNOWN LOCAL USERS
191 # The local_recipient_maps parameter specifies optional lookup tables
192 # with all names or addresses of users that are local with respect
193 # to $mydestination, $inet_interfaces or $proxy_interfaces.
195 # If this parameter is defined, then the SMTP server will reject
196 # mail for unknown local users. This parameter is defined by default.
198 # To turn off local recipient checking in the SMTP server, specify
199 # local_recipient_maps = (i.e. empty).
201 # The default setting assumes that you use the default Postfix local
202 # delivery agent for local delivery. You need to update the
203 # local_recipient_maps setting if:
205 # - You define $mydestination domain recipients in files other than
206 # /etc/passwd, /etc/aliases, or the $virtual_alias_maps files.
207 # For example, you define $mydestination domain recipients in
208 # the $virtual_mailbox_maps files.
210 # - You redefine the local delivery agent in master.cf.
212 # - You redefine the "local_transport" setting in main.cf.
214 # - You use the "luser_relay", "mailbox_transport", or "fallback_transport"
215 # feature of the Postfix local delivery agent (see local(8)).
217 # Details are described in the LOCAL_RECIPIENT_README file.
219 # Beware: if the Postfix SMTP server runs chrooted, you probably have
220 # to access the passwd file via the proxymap service, in order to
221 # overcome chroot restrictions. The alternative, having a copy of
222 # the system passwd file in the chroot jail is just not practical.
224 # The right-hand side of the lookup tables is conveniently ignored.
225 # In the left-hand side, specify a bare username, an @domain.tld
226 # wild-card, or specify a user@domain.tld address.
228 #local_recipient_maps = unix:passwd.byname $alias_maps
229 #local_recipient_maps = proxy:unix:passwd.byname $alias_maps
230 #local_recipient_maps =
232 # The unknown_local_recipient_reject_code specifies the SMTP server
233 # response code when a recipient domain matches $mydestination or
234 # ${proxy,inet}_interfaces, while $local_recipient_maps is non-empty
235 # and the recipient address or address local-part is not found.
237 # The default setting is 550 (reject mail) but it is safer to start
238 # with 450 (try again later) until you are certain that your
239 # local_recipient_maps settings are OK.
241 unknown_local_recipient_reject_code = 550
243 # TRUST AND RELAY CONTROL
245 # The mynetworks parameter specifies the list of "trusted" SMTP
246 # clients that have more privileges than "strangers".
248 # In particular, "trusted" SMTP clients are allowed to relay mail
249 # through Postfix. See the smtpd_recipient_restrictions parameter
252 # You can specify the list of "trusted" network addresses by hand
253 # or you can let Postfix do it for you (which is the default).
255 # By default (mynetworks_style = subnet), Postfix "trusts" SMTP
256 # clients in the same IP subnetworks as the local machine.
257 # On Linux, this does works correctly only with interfaces specified
258 # with the "ifconfig" command.
260 # Specify "mynetworks_style = class" when Postfix should "trust" SMTP
261 # clients in the same IP class A/B/C networks as the local machine.
262 # Don't do this with a dialup site - it would cause Postfix to "trust"
263 # your entire provider's network. Instead, specify an explicit
264 # mynetworks list by hand, as described below.
266 # Specify "mynetworks_style = host" when Postfix should "trust"
267 # only the local machine.
269 #mynetworks_style = class
270 #mynetworks_style = subnet
271 #mynetworks_style = host
273 # Alternatively, you can specify the mynetworks list by hand, in
274 # which case Postfix ignores the mynetworks_style setting.
276 # Specify an explicit list of network/netmask patterns, where the
277 # mask specifies the number of bits in the network part of a host
280 # You can also specify the absolute pathname of a pattern file instead
281 # of listing the patterns here. Specify type:table for table-based lookups
282 # (the value on the table right-hand side is not used).
284 #mynetworks = 168.100.189.0/28, 127.0.0.0/8
285 #mynetworks = $config_directory/mynetworks
286 #mynetworks = hash:/etc/postfix/network_table
287 mynetworks = 127.0.0.0/8
289 # The relay_domains parameter restricts what destinations this system will
290 # relay mail to. See the smtpd_recipient_restrictions description in
291 # postconf(5) for detailed information.
293 # By default, Postfix relays mail
294 # - from "trusted" clients (IP address matches $mynetworks) to any destination,
295 # - from "untrusted" clients to destinations that match $relay_domains or
296 # subdomains thereof, except addresses with sender-specified routing.
297 # The default relay_domains value is $mydestination.
299 # In addition to the above, the Postfix SMTP server by default accepts mail
300 # that Postfix is final destination for:
301 # - destinations that match $inet_interfaces or $proxy_interfaces,
302 # - destinations that match $mydestination
303 # - destinations that match $virtual_alias_domains,
304 # - destinations that match $virtual_mailbox_domains.
305 # These destinations do not need to be listed in $relay_domains.
307 # Specify a list of hosts or domains, /file/name patterns or type:name
308 # lookup tables, separated by commas and/or whitespace. Continue
309 # long lines by starting the next line with whitespace. A file name
310 # is replaced by its contents; a type:name table is matched when a
311 # (parent) domain appears as lookup key.
313 # NOTE: Postfix will not automatically forward mail for domains that
314 # list this system as their primary or backup MX host. See the
315 # permit_mx_backup restriction description in postconf(5).
317 #relay_domains = $mydestination
319 # INTERNET OR INTRANET
321 # The relayhost parameter specifies the default host to send mail to
322 # when no entry is matched in the optional transport(5) table. When
323 # no relayhost is given, mail is routed directly to the destination.
325 # On an intranet, specify the organizational domain name. If your
326 # internal DNS uses no MX records, specify the name of the intranet
327 # gateway host instead.
329 # In the case of SMTP, specify a domain, host, host:port, [host]:port,
330 # [address] or [address]:port; the form [host] turns off MX lookups.
332 # If you're connected via UUCP, see also the default_transport parameter.
334 #relayhost = $mydomain
335 #relayhost = [gateway.my.domain]
336 #relayhost = [mailserver.isp.tld]
337 #relayhost = uucphost
338 #relayhost = [an.ip.add.ress]
340 # REJECTING UNKNOWN RELAY USERS
342 # The relay_recipient_maps parameter specifies optional lookup tables
343 # with all addresses in the domains that match $relay_domains.
345 # If this parameter is defined, then the SMTP server will reject
346 # mail for unknown relay users. This feature is off by default.
348 # The right-hand side of the lookup tables is conveniently ignored.
349 # In the left-hand side, specify an @domain.tld wild-card, or specify
350 # a user@domain.tld address.
352 #relay_recipient_maps = hash:/etc/postfix/relay_recipients
356 # The in_flow_delay configuration parameter implements mail input
357 # flow control. This feature is turned on by default, although it
358 # still needs further development (it's disabled on SCO UNIX due
361 # A Postfix process will pause for $in_flow_delay seconds before
362 # accepting a new message, when the message arrival rate exceeds the
363 # message delivery rate. With the default 100 SMTP server process
364 # limit, this limits the mail inflow to 100 messages a second more
365 # than the number of messages delivered per second.
367 # Specify 0 to disable the feature. Valid delays are 0..10.
373 # The ADDRESS_REWRITING_README document gives information about
374 # address masquerading or other forms of address rewriting including
375 # username->Firstname.Lastname mapping.
377 # ADDRESS REDIRECTION (VIRTUAL DOMAIN)
379 # The VIRTUAL_README document gives information about the many forms
380 # of domain hosting that Postfix supports.
382 # "USER HAS MOVED" BOUNCE MESSAGES
384 # See the discussion in the ADDRESS_REWRITING_README document.
388 # See the discussion in the ADDRESS_REWRITING_README document.
392 # The alias_maps parameter specifies the list of alias databases used
393 # by the local delivery agent. The default list is system dependent.
395 # On systems with NIS, the default is to search the local alias
396 # database, then the NIS alias database. See aliases(5) for syntax
399 # If you change the alias database, run "postalias /etc/aliases" (or
400 # wherever your system stores the mail alias file), or simply run
401 # "newaliases" to build the necessary DBM or DB file.
403 # It will take a minute or so before changes become visible. Use
404 # "postfix reload" to eliminate the delay.
406 #alias_maps = dbm:/etc/aliases
407 #alias_maps = hash:/etc/aliases
408 #alias_maps = hash:/etc/aliases, nis:mail.aliases
409 #alias_maps = netinfo:/aliases
411 # The alias_database parameter specifies the alias database(s) that
412 # are built with "newaliases" or "sendmail -bi". This is a separate
413 # configuration parameter, because alias_maps (see above) may specify
414 # tables that are not necessarily all under control by Postfix.
416 #alias_database = dbm:/etc/aliases
417 #alias_database = dbm:/etc/mail/aliases
418 #alias_database = hash:/etc/aliases
419 #alias_database = hash:/etc/aliases, hash:/opt/majordomo/aliases
421 # ADDRESS EXTENSIONS (e.g., user+foo)
423 # The recipient_delimiter parameter specifies the separator between
424 # user names and address extensions (user+foo). See canonical(5),
425 # local(8), relocated(5) and virtual(5) for the effects this has on
426 # aliases, canonical, virtual, relocated and .forward file lookups.
427 # Basically, the software tries user+foo and .forward+foo before
428 # trying user and .forward.
430 #recipient_delimiter = +
432 # DELIVERY TO MAILBOX
434 # The home_mailbox parameter specifies the optional pathname of a
435 # mailbox file relative to a user's home directory. The default
436 # mailbox file is /var/spool/mail/user or /var/mail/user. Specify
437 # "Maildir/" for qmail-style delivery (the / is required).
439 #home_mailbox = Mailbox
440 #home_mailbox = Maildir/
442 # The mail_spool_directory parameter specifies the directory where
443 # UNIX-style mailboxes are kept. The default setting depends on the
446 #mail_spool_directory = /var/mail
447 #mail_spool_directory = /var/spool/mail
449 # The mailbox_command parameter specifies the optional external
450 # command to use instead of mailbox delivery. The command is run as
451 # the recipient with proper HOME, SHELL and LOGNAME environment settings.
452 # Exception: delivery for root is done as $default_user.
454 # Other environment variables of interest: USER (recipient username),
455 # EXTENSION (address extension), DOMAIN (domain part of address),
456 # and LOCAL (the address localpart).
458 # Unlike other Postfix configuration parameters, the mailbox_command
459 # parameter is not subjected to $parameter substitutions. This is to
460 # make it easier to specify shell syntax (see example below).
462 # Avoid shell meta characters because they will force Postfix to run
463 # an expensive shell process. Procmail alone is expensive enough.
465 # IF YOU USE THIS TO DELIVER MAIL SYSTEM-WIDE, YOU MUST SET UP AN
466 # ALIAS THAT FORWARDS MAIL FOR ROOT TO A REAL USER.
468 #mailbox_command = /usr/bin/procmail
469 #mailbox_command = /usr/bin/procmail -a "$EXTENSION"
471 # The mailbox_transport specifies the optional transport in master.cf
472 # to use after processing aliases and .forward files. This parameter
473 # has precedence over the mailbox_command, fallback_transport and
474 # luser_relay parameters.
476 # Specify a string of the form transport:nexthop, where transport is
477 # the name of a mail delivery transport defined in master.cf. The
478 # :nexthop part is optional. For more details see the sample transport
479 # configuration file.
481 # NOTE: if you use this feature for accounts not in the UNIX password
482 # file, then you must update the "local_recipient_maps" setting in
483 # the main.cf file, otherwise the SMTP server will reject mail for
484 # non-UNIX accounts with "User unknown in local recipient table".
486 # Cyrus IMAP over LMTP. Specify ``lmtpunix cmd="lmtpd"
487 # listen="/var/imap/socket/lmtp" prefork=0'' in cyrus.conf.
488 #mailbox_transport = lmtp:unix:/var/imap/socket/lmtp
490 # Cyrus IMAP via command line. Uncomment the "cyrus...pipe" and
491 # subsequent line in master.cf.
492 #mailbox_transport = cyrus
494 # The fallback_transport specifies the optional transport in master.cf
495 # to use for recipients that are not found in the UNIX passwd database.
496 # This parameter has precedence over the luser_relay parameter.
498 # Specify a string of the form transport:nexthop, where transport is
499 # the name of a mail delivery transport defined in master.cf. The
500 # :nexthop part is optional. For more details see the sample transport
501 # configuration file.
503 # NOTE: if you use this feature for accounts not in the UNIX password
504 # file, then you must update the "local_recipient_maps" setting in
505 # the main.cf file, otherwise the SMTP server will reject mail for
506 # non-UNIX accounts with "User unknown in local recipient table".
508 #fallback_transport = lmtp:unix:/file/name
509 #fallback_transport = cyrus
510 #fallback_transport =
512 # The luser_relay parameter specifies an optional destination address
513 # for unknown recipients. By default, mail for unknown@$mydestination,
514 # unknown@[$inet_interfaces] or unknown@[$proxy_interfaces] is returned
517 # The following expansions are done on luser_relay: $user (recipient
518 # username), $shell (recipient shell), $home (recipient home directory),
519 # $recipient (full recipient address), $extension (recipient address
520 # extension), $domain (recipient domain), $local (entire recipient
521 # localpart), $recipient_delimiter. Specify ${name?value} or
522 # ${name:value} to expand value only when $name does (does not) exist.
524 # luser_relay works only for the default Postfix local delivery agent.
526 # NOTE: if you use this feature for accounts not in the UNIX password
527 # file, then you must specify "local_recipient_maps =" (i.e. empty) in
528 # the main.cf file, otherwise the SMTP server will reject mail for
529 # non-UNIX accounts with "User unknown in local recipient table".
531 #luser_relay = $user@other.host
532 #luser_relay = $local@other.host
533 #luser_relay = admin+$local
537 # The controls listed here are only a very small subset. The file
538 # SMTPD_ACCESS_README provides an overview.
540 # The header_checks parameter specifies an optional table with patterns
541 # that each logical message header is matched against, including
542 # headers that span multiple physical lines.
544 # By default, these patterns also apply to MIME headers and to the
545 # headers of attached messages. With older Postfix versions, MIME and
546 # attached message headers were treated as body text.
548 # For details, see "man header_checks".
550 #header_checks = regexp:/etc/postfix/header_checks
554 # Postfix maintains per-destination logfiles with information about
555 # deferred mail, so that mail can be flushed quickly with the SMTP
556 # "ETRN domain.tld" command, or by executing "sendmail -qRdomain.tld".
557 # See the ETRN_README document for a detailed description.
559 # The fast_flush_domains parameter controls what destinations are
560 # eligible for this service. By default, they are all domains that
561 # this server is willing to relay mail to.
563 #fast_flush_domains = $relay_domains
565 # SHOW SOFTWARE VERSION OR NOT
567 # The smtpd_banner parameter specifies the text that follows the 220
568 # code in the SMTP server's greeting banner. Some people like to see
569 # the mail version advertised. By default, Postfix shows no version.
571 # You MUST specify $myhostname at the start of the text. That is an
572 # RFC requirement. Postfix itself does not care.
574 #smtpd_banner = $myhostname ESMTP $mail_name
575 #smtpd_banner = $myhostname ESMTP $mail_name ($mail_version)
576 smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
579 # PARALLEL DELIVERY TO THE SAME DESTINATION
581 # How many parallel deliveries to the same user or domain? With local
582 # delivery, it does not make sense to do massively parallel delivery
583 # to the same user, because mailbox updates must happen sequentially,
584 # and expensive pipelines in .forward files can cause disasters when
585 # too many are run at the same time. With SMTP deliveries, 10
586 # simultaneous connections to the same domain could be sufficient to
589 # Each message delivery transport has its XXX_destination_concurrency_limit
590 # parameter. The default is $default_destination_concurrency_limit for
591 # most delivery transports. For the local delivery agent the default is 2.
593 #local_destination_concurrency_limit = 2
594 #default_destination_concurrency_limit = 20
598 # The debug_peer_level parameter specifies the increment in verbose
599 # logging level when an SMTP client or server host name or address
600 # matches a pattern in the debug_peer_list parameter.
602 #debug_peer_level = 2
604 # The debug_peer_list parameter specifies an optional list of domain
605 # or network patterns, /file/name patterns or type:name tables. When
606 # an SMTP client or server host name or address matches a pattern,
607 # increase the verbose logging level by the amount specified in the
608 # debug_peer_level parameter.
610 #debug_peer_list = 127.0.0.1
611 #debug_peer_list = some.domain
613 # The debugger_command specifies the external command that is executed
614 # when a Postfix daemon program is run with the -D option.
616 # Use "command .. & sleep 5" so that the debugger can attach before
617 # the process marches on. If you use an X-based debugger, be sure to
618 # set up your XAUTHORITY environment variable before starting Postfix.
621 PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
622 ddd $daemon_directory/$process_name $process_id & sleep 5
624 # If you can't use X, use this to capture the call stack when a
625 # daemon crashes. The result is in a file in the configuration
626 # directory, and is named after the process name and the process ID.
629 # PATH=/bin:/usr/bin:/usr/local/bin; export PATH; (echo cont;
630 # echo where) | gdb $daemon_directory/$process_name $process_id 2>&1
631 # >$config_directory/$process_name.$process_id.log & sleep 5
633 # Another possibility is to run gdb under a detached screen session.
634 # To attach to the screen sesssion, su root and run "screen -r
635 # <id_string>" where <id_string> uniquely matches one of the detached
636 # sessions (from "screen -list").
639 # PATH=/bin:/usr/bin:/sbin:/usr/sbin; export PATH; screen
640 # -dmS $process_name gdb $daemon_directory/$process_name
641 # $process_id & sleep 1
643 # INSTALL-TIME CONFIGURATION INFORMATION
645 # The following parameters are used when installing a new Postfix version.
647 # sendmail_path: The full pathname of the Postfix sendmail command.
648 # This is the Sendmail-compatible mail posting interface.
652 # newaliases_path: The full pathname of the Postfix newaliases command.
653 # This is the Sendmail-compatible command to build alias databases.
657 # mailq_path: The full pathname of the Postfix mailq command. This
658 # is the Sendmail-compatible mail queue listing command.
662 # setgid_group: The group for mail submission and queue management
663 # commands. This must be a group name with a numerical group ID that
664 # is not shared with other accounts, not even with the Postfix account.
668 # html_directory: The location of the Postfix HTML documentation.
672 # manpage_directory: The location of the Postfix on-line manual pages.
676 # sample_directory: The location of the Postfix sample configuration files.
677 # This parameter is obsolete as of Postfix 2.1.
681 # readme_directory: The location of the Postfix README files.
684 inet_protocols = ipv4