141
141
sion id, even when TLS session caching is turned
142
142
off (<a href="postconf.5.html#smtpd_tls_session_cache_database">smtpd_tls_session_cache_database</a> is empty).
144
Available in Postfix version 2.6 and later:
146
<b><a href="postconf.5.html#tcp_windowsize">tcp_windowsize</a> (0)</b>
147
An optional workaround for routers that break TCP
144
150
<b>ADDRESS REWRITING CONTROLS</b>
145
See the <a href="ADDRESS_REWRITING_README.html">ADDRESS_REWRITING_README</a> document for a detailed
151
See the <a href="ADDRESS_REWRITING_README.html">ADDRESS_REWRITING_README</a> document for a detailed
146
152
discussion of Postfix address rewriting.
148
154
<b><a href="postconf.5.html#receive_override_options">receive_override_options</a> (empty)</b>
149
Enable or disable recipient validation, built-in
155
Enable or disable recipient validation, built-in
150
156
content filtering, or address mapping.
152
158
Available in Postfix version 2.2 and later:
154
160
<b><a href="postconf.5.html#local_header_rewrite_clients">local_header_rewrite_clients</a> (<a href="postconf.5.html#permit_inet_interfaces">permit_inet_interfaces</a>)</b>
155
161
Rewrite message header addresses in mail from these
156
clients and update incomplete addresses with the
162
clients and update incomplete addresses with the
157
163
domain name in $<a href="postconf.5.html#myorigin">myorigin</a> or $<a href="postconf.5.html#mydomain">mydomain</a>; either don't
158
rewrite message headers from other clients at all,
159
or rewrite message headers and update incomplete
160
addresses with the domain specified in the
164
rewrite message headers from other clients at all,
165
or rewrite message headers and update incomplete
166
addresses with the domain specified in the
161
167
<a href="postconf.5.html#remote_header_rewrite_domain">remote_header_rewrite_domain</a> parameter.
163
169
<b>AFTER QUEUE EXTERNAL CONTENT INSPECTION CONTROLS</b>
164
As of version 1.0, Postfix can be configured to send new
165
mail to an external content filter AFTER the mail is
166
queued. This content filter is expected to inject mail
167
back into a (Postfix or other) MTA for further delivery.
170
As of version 1.0, Postfix can be configured to send new
171
mail to an external content filter AFTER the mail is
172
queued. This content filter is expected to inject mail
173
back into a (Postfix or other) MTA for further delivery.
168
174
See the <a href="FILTER_README.html">FILTER_README</a> document for details.
170
176
<b><a href="postconf.5.html#content_filter">content_filter</a> (empty)</b>
171
The name of a mail delivery transport that filters
177
The name of a mail delivery transport that filters
172
178
mail after it is queued.
174
180
<b>BEFORE QUEUE EXTERNAL CONTENT INSPECTION CONTROLS</b>
175
As of version 2.1, the Postfix SMTP server can be config-
176
ured to send incoming mail to a real-time SMTP-based con-
181
As of version 2.1, the Postfix SMTP server can be config-
182
ured to send incoming mail to a real-time SMTP-based con-
177
183
tent filter BEFORE mail is queued. This content filter is
178
expected to inject mail back into Postfix. See the
179
<a href="SMTPD_PROXY_README.html">SMTPD_PROXY_README</a> document for details on how to config-
184
expected to inject mail back into Postfix. See the
185
<a href="SMTPD_PROXY_README.html">SMTPD_PROXY_README</a> document for details on how to config-
180
186
ure and operate this feature.
182
188
<b><a href="postconf.5.html#smtpd_proxy_filter">smtpd_proxy_filter</a> (empty)</b>
183
The hostname and TCP port of the mail filtering
189
The hostname and TCP port of the mail filtering
186
192
<b><a href="postconf.5.html#smtpd_proxy_ehlo">smtpd_proxy_ehlo</a> ($<a href="postconf.5.html#myhostname">myhostname</a>)</b>
235
242
Milter (mail filter) application, and for receiving
238
<b><a href="postconf.5.html#milter_connect_macros">milter_connect_macros</a> (see postconf -n output)</b>
245
<b><a href="postconf.5.html#milter_connect_macros">milter_connect_macros</a> (see 'postconf -d' output)</b>
239
246
The macros that are sent to Milter (mail filter)
240
247
applications after completion of an SMTP connec-
243
<b><a href="postconf.5.html#milter_helo_macros">milter_helo_macros</a> (see postconf -n output)</b>
250
<b><a href="postconf.5.html#milter_helo_macros">milter_helo_macros</a> (see 'postconf -d' output)</b>
244
251
The macros that are sent to Milter (mail filter)
245
252
applications after the SMTP HELO or EHLO command.
247
<b><a href="postconf.5.html#milter_mail_macros">milter_mail_macros</a> (see postconf -n output)</b>
254
<b><a href="postconf.5.html#milter_mail_macros">milter_mail_macros</a> (see 'postconf -d' output)</b>
248
255
The macros that are sent to Milter (mail filter)
249
256
applications after the SMTP MAIL FROM command.
251
<b><a href="postconf.5.html#milter_rcpt_macros">milter_rcpt_macros</a> (see postconf -n output)</b>
258
<b><a href="postconf.5.html#milter_rcpt_macros">milter_rcpt_macros</a> (see 'postconf -d' output)</b>
252
259
The macros that are sent to Milter (mail filter)
253
260
applications after the SMTP RCPT TO command.
255
<b><a href="postconf.5.html#milter_data_macros">milter_data_macros</a> (see postconf -n output)</b>
262
<b><a href="postconf.5.html#milter_data_macros">milter_data_macros</a> (see 'postconf -d' output)</b>
256
263
The macros that are sent to version 4 or higher
257
264
Milter (mail filter) applications after the SMTP
260
<b><a href="postconf.5.html#milter_unknown_command_macros">milter_unknown_command_macros</a> (see postconf -n output)</b>
267
<b><a href="postconf.5.html#milter_unknown_command_macros">milter_unknown_command_macros</a> (see 'postconf -d' output)</b>
261
268
The macros that are sent to version 3 or higher
262
269
Milter (mail filter) applications after an unknown
265
<b><a href="postconf.5.html#milter_end_of_header_macros">milter_end_of_header_macros</a> (see postconf -n output)</b>
272
<b><a href="postconf.5.html#milter_end_of_header_macros">milter_end_of_header_macros</a> (see 'postconf -d' output)</b>
266
273
The macros that are sent to Milter (mail filter)
267
274
applications after the end of the message header.
269
<b><a href="postconf.5.html#milter_end_of_data_macros">milter_end_of_data_macros</a> (see postconf -n output)</b>
276
<b><a href="postconf.5.html#milter_end_of_data_macros">milter_end_of_data_macros</a> (see 'postconf -d' output)</b>
270
277
The macros that are sent to Milter (mail filter)
271
278
applications after the message end-of-data.
376
383
handshake procedures.
378
385
<b><a href="postconf.5.html#smtpd_tls_CAfile">smtpd_tls_CAfile</a> (empty)</b>
379
The file with the certificate of the certification
380
authority (CA) that issued the Postfix SMTP server
386
A file containing (PEM format) CA certificates of
387
root CAs trusted to sign either remote SMTP client
388
certificates or intermediate CA certificates.
383
<b><a href="postconf.5.html#smtpd_tls_CAfile">smtpd_tls_CAfile</a> (empty)</b>
384
The file with the certificate of the certification
385
authority (CA) that issued the Postfix SMTP server
390
<b><a href="postconf.5.html#smtpd_tls_CApath">smtpd_tls_CApath</a> (empty)</b>
391
A directory containing (PEM format) CA certificates
392
of root CAs trusted to sign either remote SMTP
393
client certificates or intermediate CA certifi-
388
396
<b><a href="postconf.5.html#smtpd_tls_always_issue_session_ids">smtpd_tls_always_issue_session_ids</a> (yes)</b>
389
Force the Postfix SMTP server to issue a TLS ses-
390
sion id, even when TLS session caching is turned
397
Force the Postfix SMTP server to issue a TLS ses-
398
sion id, even when TLS session caching is turned
391
399
off (<a href="postconf.5.html#smtpd_tls_session_cache_database">smtpd_tls_session_cache_database</a> is empty).
393
401
<b><a href="postconf.5.html#smtpd_tls_ask_ccert">smtpd_tls_ask_ccert</a> (no)</b>
394
Ask a remote SMTP client for a client certificate.
402
Ask a remote SMTP client for a client certificate.
396
404
<b><a href="postconf.5.html#smtpd_tls_auth_only">smtpd_tls_auth_only</a> (no)</b>
397
405
When TLS encryption is optional in the Postfix SMTP
398
server, do not announce or accept SASL authentica-
406
server, do not announce or accept SASL authentica-
399
407
tion over unencrypted connections.
401
409
<b><a href="postconf.5.html#smtpd_tls_ccert_verifydepth">smtpd_tls_ccert_verifydepth</a> (9)</b>
402
The verification depth for remote SMTP client cer-
410
The verification depth for remote SMTP client cer-
405
413
<b><a href="postconf.5.html#smtpd_tls_cert_file">smtpd_tls_cert_file</a> (empty)</b>
406
File with the Postfix SMTP server RSA certificate
414
File with the Postfix SMTP server RSA certificate
409
417
<b><a href="postconf.5.html#smtpd_tls_exclude_ciphers">smtpd_tls_exclude_ciphers</a> (empty)</b>
411
419
SMTP server cipher list at all TLS security levels.
413
421
<b><a href="postconf.5.html#smtpd_tls_dcert_file">smtpd_tls_dcert_file</a> (empty)</b>
414
File with the Postfix SMTP server DSA certificate
422
File with the Postfix SMTP server DSA certificate
417
425
<b><a href="postconf.5.html#smtpd_tls_dh1024_param_file">smtpd_tls_dh1024_param_file</a> (empty)</b>
426
File with DH parameters that the Postfix SMTP
427
server should use with EDH ciphers.
429
<b><a href="postconf.5.html#smtpd_tls_dh512_param_file">smtpd_tls_dh512_param_file</a> (empty)</b>
418
430
File with DH parameters that the Postfix SMTP
419
431
server should use with EDH ciphers.
421
<b><a href="postconf.5.html#smtpd_tls_dh512_param_file">smtpd_tls_dh512_param_file</a> (empty)</b>
422
File with DH parameters that the Postfix SMTP
423
server should use with EDH ciphers.
425
433
<b><a href="postconf.5.html#smtpd_tls_dkey_file">smtpd_tls_dkey_file</a> ($<a href="postconf.5.html#smtpd_tls_dcert_file">smtpd_tls_dcert_file</a>)</b>
426
File with the Postfix SMTP server DSA private key
434
File with the Postfix SMTP server DSA private key
429
437
<b><a href="postconf.5.html#smtpd_tls_key_file">smtpd_tls_key_file</a> ($<a href="postconf.5.html#smtpd_tls_cert_file">smtpd_tls_cert_file</a>)</b>
430
File with the Postfix SMTP server RSA private key
438
File with the Postfix SMTP server RSA private key
433
441
<b><a href="postconf.5.html#smtpd_tls_loglevel">smtpd_tls_loglevel</a> (0)</b>
434
Enable additional Postfix SMTP server logging of
442
Enable additional Postfix SMTP server logging of
437
445
<b><a href="postconf.5.html#smtpd_tls_mandatory_ciphers">smtpd_tls_mandatory_ciphers</a> (medium)</b>
438
The minimum TLS cipher grade that the Postfix SMTP
446
The minimum TLS cipher grade that the Postfix SMTP
439
447
server will use with mandatory TLS encryption.
441
449
<b><a href="postconf.5.html#smtpd_tls_mandatory_exclude_ciphers">smtpd_tls_mandatory_exclude_ciphers</a> (empty)</b>
442
Additional list of ciphers or cipher types to
443
exclude from the SMTP server cipher list at manda-
450
Additional list of ciphers or cipher types to
451
exclude from the SMTP server cipher list at manda-
444
452
tory TLS security levels.
446
454
<b><a href="postconf.5.html#smtpd_tls_mandatory_protocols">smtpd_tls_mandatory_protocols</a> (SSLv3, TLSv1)</b>
447
The SSL/TLS protocols accepted by the Postfix SMTP
455
The SSL/TLS protocols accepted by the Postfix SMTP
448
456
server with mandatory TLS encryption.
450
458
<b><a href="postconf.5.html#smtpd_tls_received_header">smtpd_tls_received_header</a> (no)</b>
451
459
Request that the Postfix SMTP server produces
452
460
Received: message headers that include information
453
about the protocol and cipher used, as well as the
454
client CommonName and client certificate issuer
461
about the protocol and cipher used, as well as the
462
client CommonName and client certificate issuer
457
465
<b><a href="postconf.5.html#smtpd_tls_req_ccert">smtpd_tls_req_ccert</a> (no)</b>
458
With mandatory TLS encryption, require a trusted
459
remote SMTP client certificate in order to allow
466
With mandatory TLS encryption, require a trusted
467
remote SMTP client certificate in order to allow
460
468
TLS connections to proceed.
462
470
<b><a href="postconf.5.html#smtpd_tls_session_cache_database">smtpd_tls_session_cache_database</a> (empty)</b>
463
Name of the file containing the optional Postfix
471
Name of the file containing the optional Postfix
464
472
SMTP server TLS session cache.
466
474
<b><a href="postconf.5.html#smtpd_tls_session_cache_timeout">smtpd_tls_session_cache_timeout</a> (3600s)</b>
497
505
<b><a href="postconf.5.html#tls_null_cipherlist">tls_null_cipherlist</a> (eNULL:!aNULL)</b>
498
The OpenSSL cipherlist for "NULL" grade ciphers
506
The OpenSSL cipherlist for "NULL" grade ciphers
499
507
that provide authentication without encryption.
501
509
Available in Postfix version 2.5 and later:
503
511
<b><a href="postconf.5.html#smtpd_tls_fingerprint_digest">smtpd_tls_fingerprint_digest</a> (md5)</b>
504
The message digest algorithm used to construct
512
The message digest algorithm used to construct
505
513
client-certificate fingerprints for
506
514
<b><a href="postconf.5.html#check_ccert_access">check_ccert_access</a></b> and <b><a href="postconf.5.html#permit_tls_clientcerts">permit_tls_clientcerts</a></b>.
516
Available in Postfix version 2.6 and later:
518
<b><a href="postconf.5.html#smtpd_tls_protocols">smtpd_tls_protocols</a> (empty)</b>
519
List of TLS protocols that the Postfix SMTP server
520
will exclude or include with opportunistic TLS
523
<b><a href="postconf.5.html#smtpd_tls_ciphers">smtpd_tls_ciphers</a> (export)</b>
524
The minimum TLS cipher grade that the Postfix SMTP
525
server will use with opportunistic TLS encryption.
527
<b><a href="postconf.5.html#smtpd_tls_eccert_file">smtpd_tls_eccert_file</a> (empty)</b>
528
File with the Postfix SMTP server ECDSA certificate
531
<b><a href="postconf.5.html#smtpd_tls_eckey_file">smtpd_tls_eckey_file</a> ($<a href="postconf.5.html#smtpd_tls_eccert_file">smtpd_tls_eccert_file</a>)</b>
532
File with the Postfix SMTP server ECDSA private key
535
<b><a href="postconf.5.html#smtpd_tls_eecdh_grade">smtpd_tls_eecdh_grade</a> (see 'postconf -d' output)</b>
536
The Postfix SMTP server security grade for
537
ephemeral elliptic-curve Diffie-Hellman (EECDH) key
540
<b><a href="postconf.5.html#tls_eecdh_strong_curve">tls_eecdh_strong_curve</a> (prime256v1)</b>
541
The elliptic curve used by the SMTP server for sen-
542
sibly strong ephemeral ECDH key exchange.
544
<b><a href="postconf.5.html#tls_eecdh_ultra_curve">tls_eecdh_ultra_curve</a> (secp384r1)</b>
545
The elliptic curve used by the SMTP server for max-
546
imally strong ephemeral ECDH key exchange.
508
548
<b>OBSOLETE STARTTLS CONTROLS</b>
509
The following configuration parameters exist for compati-
549
The following configuration parameters exist for compati-
510
550
bility with Postfix versions before 2.3. Support for these
511
551
will be removed in a future release.
513
553
<b><a href="postconf.5.html#smtpd_use_tls">smtpd_use_tls</a> (no)</b>
514
Opportunistic TLS: announce STARTTLS support to
515
SMTP clients, but do not require that clients use
554
Opportunistic TLS: announce STARTTLS support to
555
SMTP clients, but do not require that clients use
518
558
<b><a href="postconf.5.html#smtpd_enforce_tls">smtpd_enforce_tls</a> (no)</b>
519
Mandatory TLS: announce STARTTLS support to SMTP
520
clients, and require that clients use TLS encryp-
559
Mandatory TLS: announce STARTTLS support to SMTP
560
clients, and require that clients use TLS encryp-
523
563
<b><a href="postconf.5.html#smtpd_tls_cipherlist">smtpd_tls_cipherlist</a> (empty)</b>
525
565
server TLS cipher list.
527
567
<b>VERP SUPPORT CONTROLS</b>
528
With VERP style delivery, each recipient of a message
568
With VERP style delivery, each recipient of a message
529
569
receives a customized copy of the message with his/her own
530
recipient address encoded in the envelope sender address.
570
recipient address encoded in the envelope sender address.
531
571
The <a href="VERP_README.html">VERP_README</a> file describes configuration and operation
532
details of Postfix support for variable envelope return
572
details of Postfix support for variable envelope return
533
573
path addresses. VERP style delivery is requested with the
534
SMTP XVERP command or with the "sendmail -V" command-line
535
option and is available in Postfix version 1.1 and later.
574
SMTP XVERP command or with the "sendmail -V" command-line
575
option and is available in Postfix version 1.1 and later.
537
577
<b><a href="postconf.5.html#default_verp_delimiters">default_verp_delimiters</a> (+=)</b>
538
578
The two default VERP delimiter characters.
540
580
<b><a href="postconf.5.html#verp_delimiter_filter">verp_delimiter_filter</a> (-=+)</b>
541
The characters Postfix accepts as VERP delimiter
542
characters on the Postfix <a href="sendmail.1.html"><b>sendmail</b>(1)</a> command line
581
The characters Postfix accepts as VERP delimiter
582
characters on the Postfix <a href="sendmail.1.html"><b>sendmail</b>(1)</a> command line
543
583
and in SMTP commands.
545
585
Available in Postfix version 1.1 and 2.0:
547
587
<b><a href="postconf.5.html#authorized_verp_clients">authorized_verp_clients</a> ($<a href="postconf.5.html#mynetworks">mynetworks</a>)</b>
588
What SMTP clients are allowed to specify the XVERP
591
Available in Postfix version 2.1 and later:
593
<b><a href="postconf.5.html#smtpd_authorized_verp_clients">smtpd_authorized_verp_clients</a> ($<a href="postconf.5.html#authorized_verp_clients">authorized_verp_clients</a>)</b>
548
594
What SMTP clients are allowed to specify the XVERP
551
Available in Postfix version 2.1 and later:
553
<b><a href="postconf.5.html#smtpd_authorized_verp_clients">smtpd_authorized_verp_clients</a> ($<a href="postconf.5.html#authorized_verp_clients">authorized_verp_clients</a>)</b>
554
What SMTP clients are allowed to specify the XVERP
557
597
<b>TROUBLE SHOOTING CONTROLS</b>
558
The <a href="DEBUG_README.html">DEBUG_README</a> document describes how to debug parts of
559
the Postfix mail system. The methods vary from making the
560
software log a lot of detail, to running some daemon pro-
598
The <a href="DEBUG_README.html">DEBUG_README</a> document describes how to debug parts of
599
the Postfix mail system. The methods vary from making the
600
software log a lot of detail, to running some daemon pro-
561
601
cesses under control of a call tracer or debugger.
563
603
<b><a href="postconf.5.html#debug_peer_level">debug_peer_level</a> (2)</b>
564
The increment in verbose logging level when a
565
remote client or server matches a pattern in the
604
The increment in verbose logging level when a
605
remote client or server matches a pattern in the
566
606
<a href="postconf.5.html#debug_peer_list">debug_peer_list</a> parameter.
568
608
<b><a href="postconf.5.html#debug_peer_list">debug_peer_list</a> (empty)</b>
569
Optional list of remote client or server hostname
570
or network address patterns that cause the verbose
571
logging level to increase by the amount specified
609
Optional list of remote client or server hostname
610
or network address patterns that cause the verbose
611
logging level to increase by the amount specified
572
612
in $<a href="postconf.5.html#debug_peer_level">debug_peer_level</a>.
574
614
<b><a href="postconf.5.html#error_notice_recipient">error_notice_recipient</a> (postmaster)</b>
575
The recipient of postmaster notifications about
576
mail delivery problems that are caused by policy,
615
The recipient of postmaster notifications about
616
mail delivery problems that are caused by policy,
577
617
resource, software or protocol errors.
579
619
<b><a href="postconf.5.html#internal_mail_filter_classes">internal_mail_filter_classes</a> (empty)</b>
580
What categories of Postfix-generated mail are sub-
581
ject to before-queue content inspection by
620
What categories of Postfix-generated mail are sub-
621
ject to before-queue content inspection by
582
622
<a href="postconf.5.html#non_smtpd_milters">non_smtpd_milters</a>, <a href="postconf.5.html#header_checks">header_checks</a> and <a href="postconf.5.html#body_checks">body_checks</a>.
584
624
<b><a href="postconf.5.html#notify_classes">notify_classes</a> (resource, software)</b>
585
The list of error classes that are reported to the
625
The list of error classes that are reported to the
588
628
<b><a href="postconf.5.html#soft_bounce">soft_bounce</a> (no)</b>
628
668
<b><a href="postconf.5.html#proxy_interfaces">proxy_interfaces</a> (empty)</b>
629
669
The network interface addresses that this mail sys-
630
tem receives mail on by way of a proxy or network
670
tem receives mail on by way of a proxy or network
631
671
address translation unit.
633
673
<b><a href="postconf.5.html#inet_protocols">inet_protocols</a> (ipv4)</b>
634
The Internet protocols Postfix will attempt to use
674
The Internet protocols Postfix will attempt to use
635
675
when making or accepting connections.
637
677
<b><a href="postconf.5.html#local_recipient_maps">local_recipient_maps</a> (<a href="proxymap.8.html">proxy</a>:unix:passwd.byname</b>
638
678
<b>$<a href="postconf.5.html#alias_maps">alias_maps</a>)</b>
639
Lookup tables with all names or addresses of local
640
recipients: a recipient address is local when its
641
domain matches $<a href="postconf.5.html#mydestination">mydestination</a>, $<a href="postconf.5.html#inet_interfaces">inet_interfaces</a> or
679
Lookup tables with all names or addresses of local
680
recipients: a recipient address is local when its
681
domain matches $<a href="postconf.5.html#mydestination">mydestination</a>, $<a href="postconf.5.html#inet_interfaces">inet_interfaces</a> or
642
682
$<a href="postconf.5.html#proxy_interfaces">proxy_interfaces</a>.
644
684
<b><a href="postconf.5.html#unknown_local_recipient_reject_code">unknown_local_recipient_reject_code</a> (550)</b>
645
The numerical Postfix SMTP server response code
646
when a recipient address is local, and
647
$<a href="postconf.5.html#local_recipient_maps">local_recipient_maps</a> specifies a list of lookup
685
The numerical Postfix SMTP server response code
686
when a recipient address is local, and
687
$<a href="postconf.5.html#local_recipient_maps">local_recipient_maps</a> specifies a list of lookup
648
688
tables that does not match the recipient.
650
Parameters concerning known/unknown recipients of relay
690
Parameters concerning known/unknown recipients of relay
653
693
<b><a href="postconf.5.html#relay_domains">relay_domains</a> ($<a href="postconf.5.html#mydestination">mydestination</a>)</b>
654
What destination domains (and subdomains thereof)
694
What destination domains (and subdomains thereof)
655
695
this system will relay mail to.
657
697
<b><a href="postconf.5.html#relay_recipient_maps">relay_recipient_maps</a> (empty)</b>
658
Optional lookup tables with all valid addresses in
698
Optional lookup tables with all valid addresses in
659
699
the domains that match $<a href="postconf.5.html#relay_domains">relay_domains</a>.
661
701
<b><a href="postconf.5.html#unknown_relay_recipient_reject_code">unknown_relay_recipient_reject_code</a> (550)</b>
662
702
The numerical Postfix SMTP server reply code when a
663
recipient address matches $<a href="postconf.5.html#relay_domains">relay_domains</a>, and
664
<a href="postconf.5.html#relay_recipient_maps">relay_recipient_maps</a> specifies a list of lookup
703
recipient address matches $<a href="postconf.5.html#relay_domains">relay_domains</a>, and
704
<a href="postconf.5.html#relay_recipient_maps">relay_recipient_maps</a> specifies a list of lookup
665
705
tables that does not match the recipient address.
667
Parameters concerning known/unknown recipients in virtual
707
Parameters concerning known/unknown recipients in virtual
670
710
<b><a href="postconf.5.html#virtual_alias_domains">virtual_alias_domains</a> ($<a href="postconf.5.html#virtual_alias_maps">virtual_alias_maps</a>)</b>
671
711
Postfix is final destination for the specified list
672
of virtual alias domains, that is, domains for
673
which all addresses are aliased to addresses in
712
of virtual alias domains, that is, domains for
713
which all addresses are aliased to addresses in
674
714
other local or remote domains.
676
716
<b><a href="postconf.5.html#virtual_alias_maps">virtual_alias_maps</a> ($<a href="postconf.5.html#virtual_maps">virtual_maps</a>)</b>
677
Optional lookup tables that alias specific mail
678
addresses or domains to other local or remote
717
Optional lookup tables that alias specific mail
718
addresses or domains to other local or remote
681
721
<b><a href="postconf.5.html#unknown_virtual_alias_reject_code">unknown_virtual_alias_reject_code</a> (550)</b>
682
722
The SMTP server reply code when a recipient address
683
matches $<a href="postconf.5.html#virtual_alias_domains">virtual_alias_domains</a>, and $<a href="postconf.5.html#virtual_alias_maps">vir</a>-
684
<a href="postconf.5.html#virtual_alias_maps">tual_alias_maps</a> specifies a list of lookup tables
723
matches $<a href="postconf.5.html#virtual_alias_domains">virtual_alias_domains</a>, and $<a href="postconf.5.html#virtual_alias_maps">vir</a>-
724
<a href="postconf.5.html#virtual_alias_maps">tual_alias_maps</a> specifies a list of lookup tables
685
725
that does not match the recipient address.
687
Parameters concerning known/unknown recipients in virtual
727
Parameters concerning known/unknown recipients in virtual
690
730
<b><a href="postconf.5.html#virtual_mailbox_domains">virtual_mailbox_domains</a> ($<a href="postconf.5.html#virtual_mailbox_maps">virtual_mailbox_maps</a>)</b>
691
731
Postfix is final destination for the specified list
692
of domains; mail is delivered via the $<a href="postconf.5.html#virtual_transport">vir</a>-
732
of domains; mail is delivered via the $<a href="postconf.5.html#virtual_transport">vir</a>-
693
733
<a href="postconf.5.html#virtual_transport">tual_transport</a> mail delivery transport.
695
735
<b><a href="postconf.5.html#virtual_mailbox_maps">virtual_mailbox_maps</a> (empty)</b>
696
Optional lookup tables with all valid addresses in
736
Optional lookup tables with all valid addresses in
697
737
the domains that match $<a href="postconf.5.html#virtual_mailbox_domains">virtual_mailbox_domains</a>.
699
739
<b><a href="postconf.5.html#unknown_virtual_mailbox_reject_code">unknown_virtual_mailbox_reject_code</a> (550)</b>
700
740
The SMTP server reply code when a recipient address
701
matches $<a href="postconf.5.html#virtual_mailbox_domains">virtual_mailbox_domains</a>, and $<a href="postconf.5.html#virtual_mailbox_maps">vir</a>-
741
matches $<a href="postconf.5.html#virtual_mailbox_domains">virtual_mailbox_domains</a>, and $<a href="postconf.5.html#virtual_mailbox_maps">vir</a>-
702
742
<a href="postconf.5.html#virtual_mailbox_maps">tual_mailbox_maps</a> specifies a list of lookup tables
703
743
that does not match the recipient address.
705
745
<b>RESOURCE AND RATE CONTROLS</b>
706
The following parameters limit resource usage by the SMTP
746
The following parameters limit resource usage by the SMTP
707
747
server and/or control client request rates.
709
749
<b><a href="postconf.5.html#line_length_limit">line_length_limit</a> (2048)</b>
710
Upon input, long lines are chopped up into pieces
711
of at most this length; upon delivery, long lines
750
Upon input, long lines are chopped up into pieces
751
of at most this length; upon delivery, long lines
712
752
are reconstructed.
714
754
<b><a href="postconf.5.html#queue_minfree">queue_minfree</a> (0)</b>
715
The minimal amount of free space in bytes in the
755
The minimal amount of free space in bytes in the
716
756
queue file system that is needed to receive mail.
718
758
<b><a href="postconf.5.html#message_size_limit">message_size_limit</a> (10240000)</b>
719
The maximal size in bytes of a message, including
759
The maximal size in bytes of a message, including
720
760
envelope information.
722
762
<b><a href="postconf.5.html#smtpd_recipient_limit">smtpd_recipient_limit</a> (1000)</b>
723
The maximal number of recipients that the Postfix
763
The maximal number of recipients that the Postfix
724
764
SMTP server accepts per message delivery request.
726
<b><a href="postconf.5.html#smtpd_timeout">smtpd_timeout</a> (300s)</b>
727
The time limit for sending a Postfix SMTP server
728
response and for receiving a remote SMTP client
766
<b><a href="postconf.5.html#smtpd_timeout">smtpd_timeout</a> (normal: 300s, stress: 10s)</b>
767
The time limit for sending a Postfix SMTP server
768
response and for receiving a remote SMTP client
731
771
<b><a href="postconf.5.html#smtpd_history_flush_threshold">smtpd_history_flush_threshold</a> (100)</b>
732
The maximal number of lines in the Postfix SMTP
733
server command history before it is flushed upon
772
The maximal number of lines in the Postfix SMTP
773
server command history before it is flushed upon
734
774
receipt of EHLO, RSET, or end of DATA.
736
776
Available in Postfix version 2.3 and later:
738
778
<b><a href="postconf.5.html#smtpd_peername_lookup">smtpd_peername_lookup</a> (yes)</b>
739
779
Attempt to look up the remote SMTP client hostname,
740
and verify that the name matches the client IP
780
and verify that the name matches the client IP
743
783
The per SMTP client connection count and request rate lim-
744
784
its are implemented in co-operation with the <a href="anvil.8.html"><b>anvil</b>(8)</a> ser-
745
vice, and are available in Postfix version 2.2 and later.
785
vice, and are available in Postfix version 2.2 and later.
747
787
<b><a href="postconf.5.html#smtpd_client_connection_count_limit">smtpd_client_connection_count_limit</a> (50)</b>
748
How many simultaneous connections any client is
788
How many simultaneous connections any client is
749
789
allowed to make to this service.
751
791
<b><a href="postconf.5.html#smtpd_client_connection_rate_limit">smtpd_client_connection_rate_limit</a> (0)</b>
752
792
The maximal number of connection attempts any
753
client is allowed to make to this service per time
793
client is allowed to make to this service per time
756
796
<b><a href="postconf.5.html#smtpd_client_message_rate_limit">smtpd_client_message_rate_limit</a> (0)</b>
757
The maximal number of message delivery requests
758
that any client is allowed to make to this service
797
The maximal number of message delivery requests
798
that any client is allowed to make to this service
759
799
per time unit, regardless of whether or not Postfix
760
800
actually accepts those messages.
762
802
<b><a href="postconf.5.html#smtpd_client_recipient_rate_limit">smtpd_client_recipient_rate_limit</a> (0)</b>
763
The maximal number of recipient addresses that any
764
client is allowed to send to this service per time
803
The maximal number of recipient addresses that any
804
client is allowed to send to this service per time
765
805
unit, regardless of whether or not Postfix actually
766
806
accepts those recipients.
768
808
<b><a href="postconf.5.html#smtpd_client_event_limit_exceptions">smtpd_client_event_limit_exceptions</a> ($<a href="postconf.5.html#mynetworks">mynetworks</a>)</b>
769
Clients that are excluded from connection count,
809
Clients that are excluded from connection count,
770
810
connection rate, or SMTP request rate restrictions.
772
812
Available in Postfix version 2.3 and later:
777
817
tiate with this service per time unit.
779
819
<b>TARPIT CONTROLS</b>
780
When a remote SMTP client makes errors, the Postfix SMTP
781
server can insert delays before responding. This can help
782
to slow down run-away software. The behavior is con-
783
trolled by an error counter that counts the number of
784
errors within an SMTP session that a client makes without
820
When a remote SMTP client makes errors, the Postfix SMTP
821
server can insert delays before responding. This can help
822
to slow down run-away software. The behavior is con-
823
trolled by an error counter that counts the number of
824
errors within an SMTP session that a client makes without
787
827
<b><a href="postconf.5.html#smtpd_error_sleep_time">smtpd_error_sleep_time</a> (1s)</b>
788
828
With Postfix version 2.1 and later: the SMTP server
789
response delay after a client has made more than
790
$<a href="postconf.5.html#smtpd_soft_error_limit">smtpd_soft_error_limit</a> errors, and fewer than
791
$<a href="postconf.5.html#smtpd_hard_error_limit">smtpd_hard_error_limit</a> errors, without delivering
829
response delay after a client has made more than
830
$<a href="postconf.5.html#smtpd_soft_error_limit">smtpd_soft_error_limit</a> errors, and fewer than
831
$<a href="postconf.5.html#smtpd_hard_error_limit">smtpd_hard_error_limit</a> errors, without delivering
794
834
<b><a href="postconf.5.html#smtpd_soft_error_limit">smtpd_soft_error_limit</a> (10)</b>
795
The number of errors a remote SMTP client is
796
allowed to make without delivering mail before the
835
The number of errors a remote SMTP client is
836
allowed to make without delivering mail before the
797
837
Postfix SMTP server slows down all its responses.
799
<b><a href="postconf.5.html#smtpd_hard_error_limit">smtpd_hard_error_limit</a> (20)</b>
800
The maximal number of errors a remote SMTP client
839
<b><a href="postconf.5.html#smtpd_hard_error_limit">smtpd_hard_error_limit</a> (normal: 20, stress: 1)</b>
840
The maximal number of errors a remote SMTP client
801
841
is allowed to make without delivering mail.
803
<b><a href="postconf.5.html#smtpd_junk_command_limit">smtpd_junk_command_limit</a> (100)</b>
804
The number of junk commands (NOOP, VRFY, ETRN or
843
<b><a href="postconf.5.html#smtpd_junk_command_limit">smtpd_junk_command_limit</a> (normal: 100, stress: 1)</b>
844
The number of junk commands (NOOP, VRFY, ETRN or
805
845
RSET) that a remote SMTP client can send before the
806
Postfix SMTP server starts to increment the error
846
Postfix SMTP server starts to increment the error
807
847
counter with each junk command.
809
849
Available in Postfix version 2.1 and later:
811
851
<b><a href="postconf.5.html#smtpd_recipient_overshoot_limit">smtpd_recipient_overshoot_limit</a> (1000)</b>
812
The number of recipients that a remote SMTP client
813
can send in excess of the limit specified with
852
The number of recipients that a remote SMTP client
853
can send in excess of the limit specified with
814
854
$<a href="postconf.5.html#smtpd_recipient_limit">smtpd_recipient_limit</a>, before the Postfix SMTP
815
server increments the per-session error count for
855
server increments the per-session error count for
816
856
each excess recipient.
818
858
<b>ACCESS POLICY DELEGATION CONTROLS</b>
819
As of version 2.1, Postfix can be configured to delegate
820
access policy decisions to an external server that runs
821
outside Postfix. See the file <a href="SMTPD_POLICY_README.html">SMTPD_POLICY_README</a> for
859
As of version 2.1, Postfix can be configured to delegate
860
access policy decisions to an external server that runs
861
outside Postfix. See the file <a href="SMTPD_POLICY_README.html">SMTPD_POLICY_README</a> for
822
862
more information.
824
864
<b><a href="postconf.5.html#smtpd_policy_service_max_idle">smtpd_policy_service_max_idle</a> (300s)</b>
825
The time after which an idle SMTPD policy service
865
The time after which an idle SMTPD policy service
826
866
connection is closed.
828
868
<b><a href="postconf.5.html#smtpd_policy_service_max_ttl">smtpd_policy_service_max_ttl</a> (1000s)</b>
830
870
connection is closed.
832
872
<b><a href="postconf.5.html#smtpd_policy_service_timeout">smtpd_policy_service_timeout</a> (100s)</b>
833
The time limit for connecting to, writing to or
873
The time limit for connecting to, writing to or
834
874
receiving from a delegated SMTPD policy server.
836
876
<b>ACCESS CONTROLS</b>
837
The <a href="SMTPD_ACCESS_README.html">SMTPD_ACCESS_README</a> document gives an introduction to
877
The <a href="SMTPD_ACCESS_README.html">SMTPD_ACCESS_README</a> document gives an introduction to
838
878
all the SMTP server access control features.
840
880
<b><a href="postconf.5.html#smtpd_delay_reject">smtpd_delay_reject</a> (yes)</b>
841
Wait until the RCPT TO command before evaluating
881
Wait until the RCPT TO command before evaluating
842
882
$<a href="postconf.5.html#smtpd_client_restrictions">smtpd_client_restrictions</a>, $smtpd_helo_restric-
843
883
tions and $<a href="postconf.5.html#smtpd_sender_restrictions">smtpd_sender_restrictions</a>, or wait until
844
the ETRN command before evaluating
884
the ETRN command before evaluating
845
885
$<a href="postconf.5.html#smtpd_client_restrictions">smtpd_client_restrictions</a> and $smtpd_helo_restric-
848
<b><a href="postconf.5.html#parent_domain_matches_subdomains">parent_domain_matches_subdomains</a> (see 'postconf -d' out-</b>
888
<b><a href="postconf.5.html#parent_domain_matches_subdomains">parent_domain_matches_subdomains</a> (see 'postconf -d' out-</b>
850
890
What Postfix features match subdomains of
851
891
"domain.tld" automatically, instead of requiring an
852
892
explicit ".domain.tld" pattern.
854
894
<b><a href="postconf.5.html#smtpd_client_restrictions">smtpd_client_restrictions</a> (empty)</b>
855
Optional SMTP server access restrictions in the
895
Optional SMTP server access restrictions in the
856
896
context of a client SMTP connection request.
858
898
<b><a href="postconf.5.html#smtpd_helo_required">smtpd_helo_required</a> (no)</b>
859
899
Require that a remote SMTP client introduces itself
860
at the beginning of an SMTP session with the HELO
900
at the beginning of an SMTP session with the HELO
863
903
<b><a href="postconf.5.html#smtpd_helo_restrictions">smtpd_helo_restrictions</a> (empty)</b>
864
Optional restrictions that the Postfix SMTP server
904
Optional restrictions that the Postfix SMTP server
865
905
applies in the context of the SMTP HELO command.
867
907
<b><a href="postconf.5.html#smtpd_sender_restrictions">smtpd_sender_restrictions</a> (empty)</b>
868
Optional restrictions that the Postfix SMTP server
908
Optional restrictions that the Postfix SMTP server
869
909
applies in the context of the MAIL FROM command.
871
911
<b><a href="postconf.5.html#smtpd_recipient_restrictions">smtpd_recipient_restrictions</a> (<a href="postconf.5.html#permit_mynetworks">permit_mynetworks</a>,</b>
872
912
<b><a href="postconf.5.html#reject_unauth_destination">reject_unauth_destination</a>)</b>
873
913
The access restrictions that the Postfix SMTP
874
server applies in the context of the RCPT TO com-
914
server applies in the context of the RCPT TO com-
877
917
<b><a href="postconf.5.html#smtpd_etrn_restrictions">smtpd_etrn_restrictions</a> (empty)</b>
878
Optional SMTP server access restrictions in the
918
Optional SMTP server access restrictions in the
879
919
context of a client ETRN request.
881
921
<b><a href="postconf.5.html#allow_untrusted_routing">allow_untrusted_routing</a> (no)</b>
882
Forward mail with sender-specified routing
883
(user[@%!]remote[@%!]site) from untrusted clients
922
Forward mail with sender-specified routing
923
(user[@%!]remote[@%!]site) from untrusted clients
884
924
to destinations matching $<a href="postconf.5.html#relay_domains">relay_domains</a>.
886
926
<b><a href="postconf.5.html#smtpd_restriction_classes">smtpd_restriction_classes</a> (empty)</b>
887
User-defined aliases for groups of access restric-
927
User-defined aliases for groups of access restric-
890
930
<b><a href="postconf.5.html#smtpd_null_access_lookup_key">smtpd_null_access_lookup_key</a> (</b><><b>)</b>
891
The lookup key to be used in SMTP <a href="access.5.html"><b>access</b>(5)</a> tables
931
The lookup key to be used in SMTP <a href="access.5.html"><b>access</b>(5)</a> tables
892
932
instead of the null sender address.
894
934
<b><a href="postconf.5.html#permit_mx_backup_networks">permit_mx_backup_networks</a> (empty)</b>
895
935
Restrict the use of the <a href="postconf.5.html#permit_mx_backup">permit_mx_backup</a> SMTP
896
access feature to only domains whose primary MX
936
access feature to only domains whose primary MX
897
937
hosts match the listed networks.
899
939
Available in Postfix version 2.0 and later:
901
941
<b><a href="postconf.5.html#smtpd_data_restrictions">smtpd_data_restrictions</a> (empty)</b>
902
Optional access restrictions that the Postfix SMTP
942
Optional access restrictions that the Postfix SMTP
903
943
server applies in the context of the SMTP DATA com-
906
946
<b><a href="postconf.5.html#smtpd_expansion_filter">smtpd_expansion_filter</a> (see 'postconf -d' output)</b>
907
What characters are allowed in $name expansions of
947
What characters are allowed in $name expansions of
908
948
RBL reply templates.
910
950
Available in Postfix version 2.1 and later:
912
952
<b><a href="postconf.5.html#smtpd_reject_unlisted_sender">smtpd_reject_unlisted_sender</a> (no)</b>
953
Request that the Postfix SMTP server rejects mail
954
from unknown sender addresses, even when no
955
explicit <a href="postconf.5.html#reject_unlisted_sender">reject_unlisted_sender</a> access restriction
958
<b><a href="postconf.5.html#smtpd_reject_unlisted_recipient">smtpd_reject_unlisted_recipient</a> (yes)</b>
913
959
Request that the Postfix SMTP server rejects mail
914
from unknown sender addresses, even when no
915
explicit <a href="postconf.5.html#reject_unlisted_sender">reject_unlisted_sender</a> access restriction
918
<b><a href="postconf.5.html#smtpd_reject_unlisted_recipient">smtpd_reject_unlisted_recipient</a> (yes)</b>
919
Request that the Postfix SMTP server rejects mail
920
960
for unknown recipient addresses, even when no
921
explicit <a href="postconf.5.html#reject_unlisted_recipient">reject_unlisted_recipient</a> access restric-
961
explicit <a href="postconf.5.html#reject_unlisted_recipient">reject_unlisted_recipient</a> access restric-
922
962
tion is specified.
924
964
Available in Postfix version 2.2 and later:
926
966
<b><a href="postconf.5.html#smtpd_end_of_data_restrictions">smtpd_end_of_data_restrictions</a> (empty)</b>
927
Optional access restrictions that the Postfix SMTP
928
server applies in the context of the SMTP END-OF-
967
Optional access restrictions that the Postfix SMTP
968
server applies in the context of the SMTP END-OF-
931
971
<b>SENDER AND RECIPIENT ADDRESS VERIFICATION CONTROLS</b>
932
Postfix version 2.1 introduces sender and recipient
933
address verification. This feature is implemented by
934
sending probe email messages that are not actually deliv-
935
ered. This feature is requested via the <a href="postconf.5.html#reject_unverified_sender">reject_unveri</a>-
936
<a href="postconf.5.html#reject_unverified_sender">fied_sender</a> and <a href="postconf.5.html#reject_unverified_recipient">reject_unverified_recipient</a> access
937
restrictions. The status of verification probes is main-
972
Postfix version 2.1 introduces sender and recipient
973
address verification. This feature is implemented by
974
sending probe email messages that are not actually deliv-
975
ered. This feature is requested via the reject_unveri-
976
fied_sender and <a href="postconf.5.html#reject_unverified_recipient">reject_unverified_recipient</a> access
977
restrictions. The status of verification probes is main-
938
978
tained by the <a href="verify.8.html"><b>verify</b>(8)</a> server. See the file <a href="ADDRESS_VERIFICATION_README.html">ADDRESS_VER</a>-
939
<a href="ADDRESS_VERIFICATION_README.html">IFICATION_README</a> for information about how to configure
979
<a href="ADDRESS_VERIFICATION_README.html">IFICATION_README</a> for information about how to configure
940
980
and operate the Postfix sender/recipient address verifica-
943
983
<b><a href="postconf.5.html#address_verify_poll_count">address_verify_poll_count</a> (3)</b>
944
How many times to query the <a href="verify.8.html"><b>verify</b>(8)</a> service for
945
the completion of an address verification request
984
How many times to query the <a href="verify.8.html"><b>verify</b>(8)</a> service for
985
the completion of an address verification request
948
988
<b><a href="postconf.5.html#address_verify_poll_delay">address_verify_poll_delay</a> (3s)</b>
949
The delay between queries for the completion of an
989
The delay between queries for the completion of an
950
990
address verification request in progress.
952
992
<b><a href="postconf.5.html#address_verify_sender">address_verify_sender</a> ($<a href="postconf.5.html#double_bounce_sender">double_bounce_sender</a>)</b>
953
The sender address to use in address verification
993
The sender address to use in address verification
954
994
probes; prior to Postfix 2.5 the default was "post-
957
997
<b><a href="postconf.5.html#unverified_sender_reject_code">unverified_sender_reject_code</a> (450)</b>
958
The numerical Postfix SMTP server response code
959
when a sender address is rejected by the
998
The numerical Postfix SMTP server response code
999
when a recipient address is rejected by the
960
1000
<a href="postconf.5.html#reject_unverified_sender">reject_unverified_sender</a> restriction.
962
1002
<b><a href="postconf.5.html#unverified_recipient_reject_code">unverified_recipient_reject_code</a> (450)</b>
963
The numerical Postfix SMTP server response when a
964
recipient address is rejected by the <a href="postconf.5.html#reject_unverified_recipient">reject_unveri</a>-
965
<a href="postconf.5.html#reject_unverified_recipient">fied_recipient</a> restriction.
1003
The numerical Postfix SMTP server response when a
1004
recipient address is rejected by the reject_unveri-
1005
fied_recipient restriction.
1007
Available in Postfix version 2.6 and later:
1009
<b><a href="postconf.5.html#unverified_sender_defer_code">unverified_sender_defer_code</a> (450)</b>
1010
The numerical Postfix SMTP server response code
1011
when a sender address probe fails due to a tempo-
1012
rary error condition.
1014
<b><a href="postconf.5.html#unverified_recipient_defer_code">unverified_recipient_defer_code</a> (450)</b>
1015
The numerical Postfix SMTP server response when a
1016
recipient address probe fails due to a temporary
1019
<b><a href="postconf.5.html#unverified_sender_reject_reason">unverified_sender_reject_reason</a> (empty)</b>
1020
The Postfix SMTP server's reply when rejecting mail
1021
with <a href="postconf.5.html#reject_unverified_sender">reject_unverified_sender</a>.
1023
<b><a href="postconf.5.html#unverified_recipient_reject_reason">unverified_recipient_reject_reason</a> (empty)</b>
1024
The Postfix SMTP server's reply when rejecting mail
1025
with <a href="postconf.5.html#reject_unverified_recipient">reject_unverified_recipient</a>.
1027
<b><a href="postconf.5.html#unverified_sender_tempfail_action">unverified_sender_tempfail_action</a> ($<a href="postconf.5.html#reject_tempfail_action">reject_temp</a>-</b>
1028
<b><a href="postconf.5.html#reject_tempfail_action">fail_action</a>)</b>
1029
The Postfix SMTP server's action when <a href="postconf.5.html#reject_unverified_sender">reject_unver</a>-
1030
<a href="postconf.5.html#reject_unverified_sender">ified_sender</a> fails due to a temporary error condi-
1033
<b><a href="postconf.5.html#unverified_recipient_tempfail_action">unverified_recipient_tempfail_action</a> ($<a href="postconf.5.html#reject_tempfail_action">reject_temp</a>-</b>
1034
<b><a href="postconf.5.html#reject_tempfail_action">fail_action</a>)</b>
1035
The Postfix SMTP server's action when <a href="postconf.5.html#reject_unverified_recipient">reject_unver</a>-
1036
<a href="postconf.5.html#reject_unverified_recipient">ified_recipient</a> fails due to a temporary error con-
967
1039
<b>ACCESS CONTROL RESPONSES</b>
968
The following parameters control numerical SMTP reply
1040
The following parameters control numerical SMTP reply
969
1041
codes and/or text responses.
971
1043
<b><a href="postconf.5.html#access_map_reject_code">access_map_reject_code</a> (554)</b>
972
The numerical Postfix SMTP server response code
973
when a client is rejected by an <a href="access.5.html"><b>access</b>(5)</a> map
1044
The numerical Postfix SMTP server response code for
1045
an <a href="access.5.html"><b>access</b>(5)</a> map "reject" action.
976
1047
<b><a href="postconf.5.html#defer_code">defer_code</a> (450)</b>
977
1048
The numerical Postfix SMTP server response code
1046
1117
<b><a href="postconf.5.html#rbl_reply_maps">rbl_reply_maps</a> (empty)</b>
1047
1118
Optional lookup tables with RBL response templates.
1120
Available in Postfix version 2.6 and later:
1122
<b><a href="postconf.5.html#access_map_defer_code">access_map_defer_code</a> (450)</b>
1123
The numerical Postfix SMTP server response code for
1124
an <a href="access.5.html"><b>access</b>(5)</a> map "defer" action, including
1125
"<a href="postconf.5.html#defer_if_permit">defer_if_permit</a>" or "<a href="postconf.5.html#defer_if_reject">defer_if_reject</a>".
1127
<b><a href="postconf.5.html#reject_tempfail_action">reject_tempfail_action</a> (<a href="postconf.5.html#defer_if_permit">defer_if_permit</a>)</b>
1128
The Postfix SMTP server's action when a reject-type
1129
restriction fails due to a temporary error condi-
1132
<b><a href="postconf.5.html#unknown_helo_hostname_tempfail_action">unknown_helo_hostname_tempfail_action</a> ($<a href="postconf.5.html#reject_tempfail_action">reject_temp</a>-</b>
1133
<b><a href="postconf.5.html#reject_tempfail_action">fail_action</a>)</b>
1134
The Postfix SMTP server's action when
1135
<a href="postconf.5.html#reject_unknown_helo_hostname">reject_unknown_helo_hostname</a> fails due to an tempo-
1136
rary error condition.
1138
<b><a href="postconf.5.html#unknown_address_tempfail_action">unknown_address_tempfail_action</a> ($<a href="postconf.5.html#reject_tempfail_action">reject_tempfail_action</a>)</b>
1139
The Postfix SMTP server's action when
1140
<a href="postconf.5.html#reject_unknown_sender_domain">reject_unknown_sender_domain</a> or
1141
<a href="postconf.5.html#reject_unknown_recipient_domain">reject_unknown_recipient_domain</a> fail due to a tem-
1142
porary error condition.
1049
1144
<b>MISCELLANEOUS CONTROLS</b>
1050
1145
<b><a href="postconf.5.html#config_directory">config_directory</a> (see 'postconf -d' output)</b>
1051
The default location of the Postfix <a href="postconf.5.html">main.cf</a> and
1146
The default location of the Postfix <a href="postconf.5.html">main.cf</a> and
1052
1147
<a href="master.5.html">master.cf</a> configuration files.
1054
1149
<b><a href="postconf.5.html#daemon_timeout">daemon_timeout</a> (18000s)</b>
1055
How much time a Postfix daemon process may take to
1056
handle a request before it is terminated by a
1150
How much time a Postfix daemon process may take to
1151
handle a request before it is terminated by a
1057
1152
built-in watchdog timer.
1059
1154
<b><a href="postconf.5.html#command_directory">command_directory</a> (see 'postconf -d' output)</b>
1060
The location of all postfix administrative com-
1155
The location of all postfix administrative com-
1063
1158
<b><a href="postconf.5.html#double_bounce_sender">double_bounce_sender</a> (double-bounce)</b>
1078
1173
and most Postfix daemon processes.
1080
1175
<b><a href="postconf.5.html#max_idle">max_idle</a> (100s)</b>
1081
The maximum amount of time that an idle Postfix
1082
daemon process waits for an incoming connection
1176
The maximum amount of time that an idle Postfix
1177
daemon process waits for an incoming connection
1083
1178
before terminating voluntarily.
1085
1180
<b><a href="postconf.5.html#max_use">max_use</a> (100)</b>
1086
The maximal number of incoming connections that a
1087
Postfix daemon process will service before termi-
1181
The maximal number of incoming connections that a
1182
Postfix daemon process will service before termi-
1088
1183
nating voluntarily.
1090
1185
<b><a href="postconf.5.html#myhostname">myhostname</a> (see 'postconf -d' output)</b>
1091
1186
The internet hostname of this mail system.
1093
1188
<b><a href="postconf.5.html#mynetworks">mynetworks</a> (see 'postconf -d' output)</b>
1094
The list of "trusted" SMTP clients that have more
1189
The list of "trusted" SMTP clients that have more
1095
1190
privileges than "strangers".
1097
1192
<b><a href="postconf.5.html#myorigin">myorigin</a> ($<a href="postconf.5.html#myhostname">myhostname</a>)</b>
1098
1193
The domain name that locally-posted mail appears to
1099
come from, and that locally posted mail is deliv-
1194
come from, and that locally posted mail is deliv-
1102
1197
<b><a href="postconf.5.html#process_id">process_id</a> (read-only)</b>
1103
The process ID of a Postfix command or daemon
1198
The process ID of a Postfix command or daemon
1106
1201
<b><a href="postconf.5.html#process_name">process_name</a> (read-only)</b>
1107
The process name of a Postfix command or daemon
1202
The process name of a Postfix command or daemon
1110
1205
<b><a href="postconf.5.html#queue_directory">queue_directory</a> (see 'postconf -d' output)</b>
1111
The location of the Postfix top-level queue direc-
1206
The location of the Postfix top-level queue direc-
1114
1209
<b><a href="postconf.5.html#recipient_delimiter">recipient_delimiter</a> (empty)</b>