main.cf revision 1.8
1# $NetBSD: main.cf,v 1.8 2020/03/18 19:05:13 christos Exp $ 2# 3# Global Postfix configuration file. This file lists only a subset 4# of all parameters. For the syntax, and for a complete parameter 5# list, see the postconf(5) manual page (command: "man 5 postconf"). 6# 7# For common configuration examples, see BASIC_CONFIGURATION_README 8# and STANDARD_CONFIGURATION_README. To find these documents, use 9# the command "postconf html_directory readme_directory", or go to 10# http://www.postfix.org/BASIC_CONFIGURATION_README.html etc. 11# 12# For best results, change no more than 2-3 parameters at a time, 13# and test if Postfix still works after every change. 14 15# COMPATIBILITY 16# 17# The compatibility_level determines what default settings Postfix 18# will use for main.cf and master.cf settings. These defaults will 19# change over time. 20# 21# To avoid breaking things, Postfix will use backwards-compatible 22# default settings and log where it uses those old backwards-compatible 23# default settings, until the system administrator has determined 24# if any backwards-compatible default settings need to be made 25# permanent in main.cf or master.cf. 26# 27# When this review is complete, update the compatibility_level setting 28# below as recommended in the RELEASE_NOTES file. 29# 30# The level below is what should be used with new (not upgrade) installs. 31# 32compatibility_level = 2 33 34# On NetBSD we are built without EAI support, so we must disable utf8 35smtputf8_enable=no 36 37# SOFT BOUNCE 38# 39# The soft_bounce parameter provides a limited safety net for 40# testing. When soft_bounce is enabled, mail will remain queued that 41# would otherwise bounce. This parameter disables locally-generated 42# bounces, and prevents the SMTP server from rejecting mail permanently 43# (by changing 5xx replies into 4xx replies). However, soft_bounce 44# is no cure for address rewriting mistakes or mail routing mistakes. 45# 46#soft_bounce = no 47 48# LOCAL PATHNAME INFORMATION 49# 50# The queue_directory specifies the location of the Postfix queue. 51# This is also the root directory of Postfix daemons that run chrooted. 52# See the files in examples/chroot-setup for setting up Postfix chroot 53# environments on different UNIX systems. 54# 55queue_directory = /var/spool/postfix 56 57# The command_directory parameter specifies the location of all 58# postXXX commands. 59# 60command_directory = /usr/sbin 61 62# The daemon_directory parameter specifies the location of all Postfix 63# daemon programs (i.e. programs listed in the master.cf file). This 64# directory must be owned by root. 65# 66daemon_directory = /usr/libexec/postfix 67 68# The data_directory parameter specifies the location of Postfix-writable 69# data files (caches, random numbers). This directory must be owned 70# by the mail_owner account (see below). 71# 72data_directory = /var/db/postfix 73 74# QUEUE AND PROCESS OWNERSHIP 75# 76# The mail_owner parameter specifies the owner of the Postfix queue 77# and of most Postfix daemon processes. Specify the name of a user 78# account THAT DOES NOT SHARE ITS USER OR GROUP ID WITH OTHER ACCOUNTS 79# AND THAT OWNS NO OTHER FILES OR PROCESSES ON THE SYSTEM. In 80# particular, don't specify nobody or daemon. PLEASE USE A DEDICATED 81# USER. 82# 83mail_owner = postfix 84 85# The default_privs parameter specifies the default rights used by 86# the local delivery agent for delivery to external file or command. 87# These rights are used in the absence of a recipient user context. 88# DO NOT SPECIFY A PRIVILEGED USER OR THE POSTFIX OWNER. 89# 90#default_privs = nobody 91 92# INTERNET HOST AND DOMAIN NAMES 93# 94# The myhostname parameter specifies the internet hostname of this 95# mail system. The default is to use the fully-qualified domain name 96# from gethostname(). $myhostname is used as a default value for many 97# other configuration parameters. 98# 99#myhostname = host.domain.tld 100#myhostname = virtual.domain.tld 101 102# The mydomain parameter specifies the local internet domain name. 103# The default is to use $myhostname minus the first component. 104# $mydomain is used as a default value for many other configuration 105# parameters. 106# 107#mydomain = domain.tld 108 109# SENDING MAIL 110# 111# The myorigin parameter specifies the domain that locally-posted 112# mail appears to come from. The default is to append $myhostname, 113# which is fine for small sites. If you run a domain with multiple 114# machines, you should (1) change this to $mydomain and (2) set up 115# a domain-wide alias database that aliases each user to 116# user@that.users.mailhost. 117# 118# For the sake of consistency between sender and recipient addresses, 119# myorigin also specifies the default domain name that is appended 120# to recipient addresses that have no @domain part. 121# 122#myorigin = $myhostname 123#myorigin = $mydomain 124 125# RECEIVING MAIL 126 127# 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]. 131# 132# NOTE: On NetBSD, postfix does not listen on the network by default. 133# To enable inbound mail reception once your configuration is 134# ready, uncomment the smtp service in /etc/postfix/master.cf 135# 136# See also the proxy_interfaces parameter, for network addresses that 137# are forwarded to us via a proxy or network address translator. 138# 139# Note: you need to stop/start Postfix when this parameter changes. 140# 141#inet_interfaces = all 142#inet_interfaces = $myhostname 143#inet_interfaces = $myhostname, localhost 144 145# NetBSD is IPv6-capable. Use all available address families. 146# 147inet_protocols = all 148 149# The proxy_interfaces parameter specifies the network interface 150# addresses that this mail system receives mail on by way of a 151# proxy or network address translation unit. This setting extends 152# the address list specified with the inet_interfaces parameter. 153# 154# You must specify your proxy/NAT addresses when your system is a 155# backup MX host for other domains, otherwise mail delivery loops 156# will happen when the primary MX host is down. 157# 158#proxy_interfaces = 159#proxy_interfaces = 1.2.3.4 160 161# The mydestination parameter specifies the list of domains that this 162# machine considers itself the final destination for. 163# 164# These domains are routed to the delivery agent specified with the 165# local_transport parameter setting. By default, that is the UNIX 166# compatible delivery agent that lookups all recipients in /etc/passwd 167# and /etc/aliases or their equivalent. 168# 169# The default is $myhostname + localhost.$mydomain + localhost. On 170# a mail domain gateway, you should also include $mydomain. 171# 172# Do not specify the names of virtual domains - those domains are 173# specified elsewhere (see VIRTUAL_README). 174# 175# Do not specify the names of domains that this machine is backup MX 176# host for. Specify those names via the relay_domains settings for 177# the SMTP server, or use permit_mx_backup if you are lazy (see 178# STANDARD_CONFIGURATION_README). 179# 180# The local machine is always the final destination for mail addressed 181# to user@[the.net.work.address] of an interface that the mail system 182# receives mail on (see the inet_interfaces parameter). 183# 184# Specify a list of host or domain names, /file/name or type:table 185# patterns, separated by commas and/or whitespace. A /file/name 186# pattern is replaced by its contents; a type:table is matched when 187# a name matches a lookup key (the right-hand side is ignored). 188# Continue long lines by starting the next line with whitespace. 189# 190# See also below, section "REJECTING MAIL FOR UNKNOWN LOCAL USERS". 191# 192#mydestination = $myhostname, localhost.$mydomain, localhost 193#mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain 194#mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain, 195# mail.$mydomain, www.$mydomain, ftp.$mydomain 196 197# REJECTING MAIL FOR UNKNOWN LOCAL USERS 198# 199# The local_recipient_maps parameter specifies optional lookup tables 200# with all names or addresses of users that are local with respect 201# to $mydestination, $inet_interfaces or $proxy_interfaces. 202# 203# If this parameter is defined, then the SMTP server will reject 204# mail for unknown local users. This parameter is defined by default. 205# 206# To turn off local recipient checking in the SMTP server, specify 207# local_recipient_maps = (i.e. empty). 208# 209# The default setting assumes that you use the default Postfix local 210# delivery agent for local delivery. You need to update the 211# local_recipient_maps setting if: 212# 213# - You define $mydestination domain recipients in files other than 214# /etc/passwd, /etc/aliases, or the $virtual_alias_maps files. 215# For example, you define $mydestination domain recipients in 216# the $virtual_mailbox_maps files. 217# 218# - You redefine the local delivery agent in master.cf. 219# 220# - You redefine the "local_transport" setting in main.cf. 221# 222# - You use the "luser_relay", "mailbox_transport", or "fallback_transport" 223# feature of the Postfix local delivery agent (see local(8)). 224# 225# Details are described in the LOCAL_RECIPIENT_README file. 226# 227# Beware: if the Postfix SMTP server runs chrooted, you probably have 228# to access the passwd file via the proxymap service, in order to 229# overcome chroot restrictions. The alternative, having a copy of 230# the system passwd file in the chroot jail is just not practical. 231# 232# The right-hand side of the lookup tables is conveniently ignored. 233# In the left-hand side, specify a bare username, an @domain.tld 234# wild-card, or specify a user@domain.tld address. 235# 236#local_recipient_maps = unix:passwd.byname $alias_maps 237#local_recipient_maps = proxy:unix:passwd.byname $alias_maps 238#local_recipient_maps = 239 240# The unknown_local_recipient_reject_code specifies the SMTP server 241# response code when a recipient domain matches $mydestination or 242# ${proxy,inet}_interfaces, while $local_recipient_maps is non-empty 243# and the recipient address or address local-part is not found. 244# 245# The default setting is 550 (reject mail) but it is safer to start 246# with 450 (try again later) until you are certain that your 247# local_recipient_maps settings are OK. 248# 249unknown_local_recipient_reject_code = 550 250 251# TRUST AND RELAY CONTROL 252 253# The mynetworks parameter specifies the list of "trusted" SMTP 254# clients that have more privileges than "strangers". 255# 256# In particular, "trusted" SMTP clients are allowed to relay mail 257# through Postfix. See the smtpd_recipient_restrictions parameter 258# in postconf(5). 259# 260# You can specify the list of "trusted" network addresses by hand 261# or you can let Postfix do it for you (which is the default). 262# 263# By default (mynetworks_style = subnet), Postfix "trusts" SMTP 264# clients in the same IP subnetworks as the local machine. 265# On Linux, this works correctly only with interfaces specified 266# with the "ifconfig" command. 267# 268# Specify "mynetworks_style = class" when Postfix should "trust" SMTP 269# clients in the same IP class A/B/C networks as the local machine. 270# Don't do this with a dialup site - it would cause Postfix to "trust" 271# your entire provider's network. Instead, specify an explicit 272# mynetworks list by hand, as described below. 273# 274# Specify "mynetworks_style = host" when Postfix should "trust" 275# only the local machine. 276# 277#mynetworks_style = class 278#mynetworks_style = subnet 279#mynetworks_style = host 280 281# Alternatively, you can specify the mynetworks list by hand, in 282# which case Postfix ignores the mynetworks_style setting. 283# 284# Specify an explicit list of network/netmask patterns, where the 285# mask specifies the number of bits in the network part of a host 286# address. 287# 288# You can also specify the absolute pathname of a pattern file instead 289# of listing the patterns here. Specify type:table for table-based lookups 290# (the value on the table right-hand side is not used). 291# 292#mynetworks = 168.100.189.0/28, 127.0.0.0/8 293#mynetworks = $config_directory/mynetworks 294#mynetworks = hash:/etc/postfix/network_table 295 296# The relay_domains parameter restricts what destinations this system will 297# relay mail to. See the smtpd_recipient_restrictions description in 298# postconf(5) for detailed information. 299# 300# By default, Postfix relays mail 301# - from "trusted" clients (IP address matches $mynetworks) to any destination, 302# - from "untrusted" clients to destinations that match $relay_domains or 303# subdomains thereof, except addresses with sender-specified routing. 304# The default relay_domains value is $mydestination. 305# 306# In addition to the above, the Postfix SMTP server by default accepts mail 307# that Postfix is final destination for: 308# - destinations that match $inet_interfaces or $proxy_interfaces, 309# - destinations that match $mydestination 310# - destinations that match $virtual_alias_domains, 311# - destinations that match $virtual_mailbox_domains. 312# These destinations do not need to be listed in $relay_domains. 313# 314# Specify a list of hosts or domains, /file/name patterns or type:name 315# lookup tables, separated by commas and/or whitespace. Continue 316# long lines by starting the next line with whitespace. A file name 317# is replaced by its contents; a type:name table is matched when a 318# (parent) domain appears as lookup key. 319# 320# NOTE: Postfix will not automatically forward mail for domains that 321# list this system as their primary or backup MX host. See the 322# permit_mx_backup restriction description in postconf(5). 323# 324#relay_domains = $mydestination 325 326# INTERNET OR INTRANET 327 328# The relayhost parameter specifies the default host to send mail to 329# when no entry is matched in the optional transport(5) table. When 330# no relayhost is given, mail is routed directly to the destination. 331# 332# On an intranet, specify the organizational domain name. If your 333# internal DNS uses no MX records, specify the name of the intranet 334# gateway host instead. 335# 336# In the case of SMTP, specify a domain, host, host:port, [host]:port, 337# [address] or [address]:port; the form [host] turns off MX lookups. 338# 339# If you're connected via UUCP, see also the default_transport parameter. 340# 341#relayhost = $mydomain 342#relayhost = [gateway.my.domain] 343#relayhost = [mailserver.isp.tld] 344#relayhost = uucphost 345#relayhost = [an.ip.add.ress] 346 347# REJECTING UNKNOWN RELAY USERS 348# 349# The relay_recipient_maps parameter specifies optional lookup tables 350# with all addresses in the domains that match $relay_domains. 351# 352# If this parameter is defined, then the SMTP server will reject 353# mail for unknown relay users. This feature is off by default. 354# 355# The right-hand side of the lookup tables is conveniently ignored. 356# In the left-hand side, specify an @domain.tld wild-card, or specify 357# a user@domain.tld address. 358# 359#relay_recipient_maps = hash:/etc/postfix/relay_recipients 360 361# INPUT RATE CONTROL 362# 363# The in_flow_delay configuration parameter implements mail input 364# flow control. This feature is turned on by default, although it 365# still needs further development (it's disabled on SCO UNIX due 366# to an SCO bug). 367# 368# A Postfix process will pause for $in_flow_delay seconds before 369# accepting a new message, when the message arrival rate exceeds the 370# message delivery rate. With the default 100 SMTP server process 371# limit, this limits the mail inflow to 100 messages a second more 372# than the number of messages delivered per second. 373# 374# Specify 0 to disable the feature. Valid delays are 0..10. 375# 376#in_flow_delay = 1s 377 378# ADDRESS REWRITING 379# 380# The ADDRESS_REWRITING_README document gives information about 381# address masquerading or other forms of address rewriting including 382# username->Firstname.Lastname mapping. 383 384# ADDRESS REDIRECTION (VIRTUAL DOMAIN) 385# 386# The VIRTUAL_README document gives information about the many forms 387# of domain hosting that Postfix supports. 388 389# "USER HAS MOVED" BOUNCE MESSAGES 390# 391# See the discussion in the ADDRESS_REWRITING_README document. 392 393# TRANSPORT MAP 394# 395# See the discussion in the ADDRESS_REWRITING_README document. 396 397# ALIAS DATABASE 398# 399# The alias_maps parameter specifies the list of alias databases used 400# by the local delivery agent. The default list is system dependent. 401# 402# On systems with NIS, the default is to search the local alias 403# database, then the NIS alias database. See aliases(5) for syntax 404# details. 405# 406# If you change the alias database, run "postalias /etc/aliases" (or 407# wherever your system stores the mail alias file), or simply run 408# "newaliases" to build the necessary DBM or DB file. 409# 410# It will take a minute or so before changes become visible. Use 411# "postfix reload" to eliminate the delay. 412# 413#alias_maps = dbm:/etc/aliases 414#alias_maps = hash:/etc/aliases 415#alias_maps = hash:/etc/aliases, nis:mail.aliases 416#alias_maps = netinfo:/aliases 417 418# The alias_database parameter specifies the alias database(s) that 419# are built with "newaliases" or "sendmail -bi". This is a separate 420# configuration parameter, because alias_maps (see above) may specify 421# tables that are not necessarily all under control by Postfix. 422# 423#alias_database = dbm:/etc/aliases 424#alias_database = dbm:/etc/mail/aliases 425#alias_database = hash:/etc/aliases 426#alias_database = hash:/etc/aliases, hash:/opt/majordomo/aliases 427 428# ADDRESS EXTENSIONS (e.g., user+foo) 429# 430# The recipient_delimiter parameter specifies the separator between 431# user names and address extensions (user+foo). See canonical(5), 432# local(8), relocated(5) and virtual(5) for the effects this has on 433# aliases, canonical, virtual, relocated and .forward file lookups. 434# Basically, the software tries user+foo and .forward+foo before 435# trying user and .forward. 436# 437#recipient_delimiter = + 438 439# DELIVERY TO MAILBOX 440# 441# The home_mailbox parameter specifies the optional pathname of a 442# mailbox file relative to a user's home directory. The default 443# mailbox file is /var/spool/mail/user or /var/mail/user. Specify 444# "Maildir/" for qmail-style delivery (the / is required). 445# 446#home_mailbox = Mailbox 447#home_mailbox = Maildir/ 448 449# The mail_spool_directory parameter specifies the directory where 450# UNIX-style mailboxes are kept. The default setting depends on the 451# system type. 452# 453#mail_spool_directory = /var/mail 454#mail_spool_directory = /var/spool/mail 455 456# The mailbox_command parameter specifies the optional external 457# command to use instead of mailbox delivery. The command is run as 458# the recipient with proper HOME, SHELL and LOGNAME environment settings. 459# Exception: delivery for root is done as $default_user. 460# 461# Other environment variables of interest: USER (recipient username), 462# EXTENSION (address extension), DOMAIN (domain part of address), 463# and LOCAL (the address localpart). 464# 465# Unlike other Postfix configuration parameters, the mailbox_command 466# parameter is not subjected to $parameter substitutions. This is to 467# make it easier to specify shell syntax (see example below). 468# 469# Avoid shell meta characters because they will force Postfix to run 470# an expensive shell process. Procmail alone is expensive enough. 471# 472# IF YOU USE THIS TO DELIVER MAIL SYSTEM-WIDE, YOU MUST SET UP AN 473# ALIAS THAT FORWARDS MAIL FOR ROOT TO A REAL USER. 474# 475#mailbox_command = /some/where/procmail 476#mailbox_command = /some/where/procmail -a "$EXTENSION" 477 478# The mailbox_transport specifies the optional transport in master.cf 479# to use after processing aliases and .forward files. This parameter 480# has precedence over the mailbox_command, fallback_transport and 481# luser_relay parameters. 482# 483# Specify a string of the form transport:nexthop, where transport is 484# the name of a mail delivery transport defined in master.cf. The 485# :nexthop part is optional. For more details see the sample transport 486# configuration file. 487# 488# NOTE: if you use this feature for accounts not in the UNIX password 489# file, then you must update the "local_recipient_maps" setting in 490# the main.cf file, otherwise the SMTP server will reject mail for 491# non-UNIX accounts with "User unknown in local recipient table". 492# 493# Cyrus IMAP over LMTP. Specify ``lmtpunix cmd="lmtpd" 494# listen="/var/imap/socket/lmtp" prefork=0'' in cyrus.conf. 495#mailbox_transport = lmtp:unix:/var/imap/socket/lmtp 496# 497# Cyrus IMAP via command line. Uncomment the "cyrus...pipe" and 498# subsequent line in master.cf. 499#mailbox_transport = cyrus 500 501# The fallback_transport specifies the optional transport in master.cf 502# to use for recipients that are not found in the UNIX passwd database. 503# This parameter has precedence over the luser_relay parameter. 504# 505# Specify a string of the form transport:nexthop, where transport is 506# the name of a mail delivery transport defined in master.cf. The 507# :nexthop part is optional. For more details see the sample transport 508# configuration file. 509# 510# NOTE: if you use this feature for accounts not in the UNIX password 511# file, then you must update the "local_recipient_maps" setting in 512# the main.cf file, otherwise the SMTP server will reject mail for 513# non-UNIX accounts with "User unknown in local recipient table". 514# 515#fallback_transport = lmtp:unix:/file/name 516#fallback_transport = cyrus 517#fallback_transport = 518 519# The luser_relay parameter specifies an optional destination address 520# for unknown recipients. By default, mail for unknown@$mydestination, 521# unknown@[$inet_interfaces] or unknown@[$proxy_interfaces] is returned 522# as undeliverable. 523# 524# The following expansions are done on luser_relay: $user (recipient 525# username), $shell (recipient shell), $home (recipient home directory), 526# $recipient (full recipient address), $extension (recipient address 527# extension), $domain (recipient domain), $local (entire recipient 528# localpart), $recipient_delimiter. Specify ${name?value} or 529# ${name:value} to expand value only when $name does (does not) exist. 530# 531# luser_relay works only for the default Postfix local delivery agent. 532# 533# NOTE: if you use this feature for accounts not in the UNIX password 534# file, then you must specify "local_recipient_maps =" (i.e. empty) in 535# the main.cf file, otherwise the SMTP server will reject mail for 536# non-UNIX accounts with "User unknown in local recipient table". 537# 538#luser_relay = $user@other.host 539#luser_relay = $local@other.host 540#luser_relay = admin+$local 541 542# JUNK MAIL CONTROLS 543# 544# The controls listed here are only a very small subset. The file 545# SMTPD_ACCESS_README provides an overview. 546 547# The header_checks parameter specifies an optional table with patterns 548# that each logical message header is matched against, including 549# headers that span multiple physical lines. 550# 551# By default, these patterns also apply to MIME headers and to the 552# headers of attached messages. With older Postfix versions, MIME and 553# attached message headers were treated as body text. 554# 555# For details, see "man header_checks". 556# 557#header_checks = regexp:/etc/postfix/header_checks 558 559# FAST ETRN SERVICE 560# 561# Postfix maintains per-destination logfiles with information about 562# deferred mail, so that mail can be flushed quickly with the SMTP 563# "ETRN domain.tld" command, or by executing "sendmail -qRdomain.tld". 564# See the ETRN_README document for a detailed description. 565# 566# The fast_flush_domains parameter controls what destinations are 567# eligible for this service. By default, they are all domains that 568# this server is willing to relay mail to. 569# 570#fast_flush_domains = $relay_domains 571 572# SHOW SOFTWARE VERSION OR NOT 573# 574# The smtpd_banner parameter specifies the text that follows the 220 575# code in the SMTP server's greeting banner. Some people like to see 576# the mail version advertised. By default, Postfix shows no version. 577# 578# You MUST specify $myhostname at the start of the text. That is an 579# RFC requirement. Postfix itself does not care. 580# 581#smtpd_banner = $myhostname ESMTP $mail_name 582#smtpd_banner = $myhostname ESMTP $mail_name ($mail_version) 583 584# PARALLEL DELIVERY TO THE SAME DESTINATION 585# 586# How many parallel deliveries to the same user or domain? With local 587# delivery, it does not make sense to do massively parallel delivery 588# to the same user, because mailbox updates must happen sequentially, 589# and expensive pipelines in .forward files can cause disasters when 590# too many are run at the same time. With SMTP deliveries, 10 591# simultaneous connections to the same domain could be sufficient to 592# raise eyebrows. 593# 594# Each message delivery transport has its XXX_destination_concurrency_limit 595# parameter. The default is $default_destination_concurrency_limit for 596# most delivery transports. For the local delivery agent the default is 2. 597 598#local_destination_concurrency_limit = 2 599#default_destination_concurrency_limit = 20 600 601# DEBUGGING CONTROL 602# 603# The debug_peer_level parameter specifies the increment in verbose 604# logging level when an SMTP client or server host name or address 605# matches a pattern in the debug_peer_list parameter. 606# 607debug_peer_level = 2 608 609# The debug_peer_list parameter specifies an optional list of domain 610# or network patterns, /file/name patterns or type:name tables. When 611# an SMTP client or server host name or address matches a pattern, 612# increase the verbose logging level by the amount specified in the 613# debug_peer_level parameter. 614# 615#debug_peer_list = 127.0.0.1 616#debug_peer_list = some.domain 617 618# The debugger_command specifies the external command that is executed 619# when a Postfix daemon program is run with the -D option. 620# 621# Use "command .. & sleep 5" so that the debugger can attach before 622# the process marches on. If you use an X-based debugger, be sure to 623# set up your XAUTHORITY environment variable before starting Postfix. 624# 625debugger_command = 626 PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin 627 ddd $daemon_directory/$process_name $process_id & sleep 5 628 629# If you can't use X, use this to capture the call stack when a 630# daemon crashes. The result is in a file in the configuration 631# directory, and is named after the process name and the process ID. 632# 633# debugger_command = 634# PATH=/bin:/usr/bin:/usr/local/bin; export PATH; (echo cont; 635# echo where) | gdb $daemon_directory/$process_name $process_id 2>&1 636# >$config_directory/$process_name.$process_id.log & sleep 5 637# 638# Another possibility is to run gdb under a detached screen session. 639# To attach to the screen session, su root and run "screen -r 640# <id_string>" where <id_string> uniquely matches one of the detached 641# sessions (from "screen -list"). 642# 643# debugger_command = 644# PATH=/bin:/usr/bin:/sbin:/usr/sbin; export PATH; screen 645# -dmS $process_name gdb $daemon_directory/$process_name 646# $process_id & sleep 1 647 648# INSTALL-TIME CONFIGURATION INFORMATION 649# 650# The following parameters are used when installing a new Postfix version. 651# 652# sendmail_path: The full pathname of the Postfix sendmail command. 653# This is the Sendmail-compatible mail posting interface. 654# 655sendmail_path = /usr/sbin/sendmail 656 657# newaliases_path: The full pathname of the Postfix newaliases command. 658# This is the Sendmail-compatible command to build alias databases. 659# 660newaliases_path = /usr/bin/newaliases 661 662# mailq_path: The full pathname of the Postfix mailq command. This 663# is the Sendmail-compatible mail queue listing command. 664# 665mailq_path = /usr/bin/mailq 666 667# setgid_group: The group for mail submission and queue management 668# commands. This must be a group name with a numerical group ID that 669# is not shared with other accounts, not even with the Postfix account. 670# 671setgid_group = maildrop 672 673# html_directory: The location of the Postfix HTML documentation. 674# 675html_directory = /usr/share/doc/html/postfix 676 677# manpage_directory: The location of the Postfix on-line manual pages. 678# 679manpage_directory = /usr/share/man 680 681# sample_directory: The location of the Postfix sample configuration files. 682# This parameter is obsolete as of Postfix 2.1. 683# 684sample_directory = /usr/share/examples/postfix 685 686# readme_directory: The location of the Postfix README files. 687# 688readme_directory = /usr/share/examples/postfix 689#inet_protocols = ipv4 690