{ "mode": "man", "parameter": "error", "section": "8postfix", "url": "https://www.chedong.com/phpMan.php/man/error/8postfix/json", "generated": "2026-10-07T22:39:31Z", "synopsis": "error [generic Postfix daemon options]", "sections": { "NAME": { "content": "error - Postfix error/retry mail delivery agent\n", "subsections": [] }, "SYNOPSIS": { "content": "error [generic Postfix daemon options]\n", "subsections": [] }, "DESCRIPTION": { "content": "The Postfix error(8) delivery agent processes delivery requests from the queue manager. Each\nrequest specifies a queue file, a sender address, the reason for non-delivery (specified as\nthe next-hop destination), and recipient information. The reason may be prefixed with an RFC\n3463-compatible detail code; if none is specified a default 4.0.0 or 5.0.0 code is used in‐\nstead. This program expects to be run from the master(8) process manager.\n\nDepending on the service name in master.cf, error or retry, the server bounces or defers all\nrecipients in the delivery request using the \"next-hop\" information as the reason for non-de‐\nlivery. The retry service name is supported as of Postfix 2.4.\n\nDelivery status reports are sent to the bounce(8), defer(8) or trace(8) daemon as appropri‐\nate.\n", "subsections": [] }, "SECURITY": { "content": "The error(8) mailer is not security-sensitive. It does not talk to the network, and can be\nrun chrooted at fixed low privilege.\n", "subsections": [] }, "STANDARDS": { "content": "RFC 3463 (Enhanced Status Codes)\n", "subsections": [] }, "DIAGNOSTICS": { "content": "Problems and transactions are logged to syslogd(8) or postlogd(8).\n\nDepending on the setting of the notifyclasses parameter, the postmaster is notified of\nbounces and of other trouble.\n", "subsections": [] }, "CONFIGURATION PARAMETERS": { "content": "Changes to main.cf are picked up automatically as error(8) processes run for only a limited\namount of time. Use the command \"postfix reload\" to speed up a change.\n\nThe text below provides only a parameter summary. See postconf(5) for more details including\nexamples.\n", "subsections": [ { "name": "2bounce_notice_recipient (postmaster)", "content": "The recipient of undeliverable mail that cannot be returned to the sender.\n" }, { "name": "bounce_notice_recipient (postmaster)", "content": "The recipient of postmaster notifications with the message headers of mail that Post‐\nfix did not deliver and of SMTP conversation transcripts of mail that Postfix did not\nreceive.\n" }, { "name": "config_directory (see 'postconf -d' output)", "content": "The default location of the Postfix main.cf and master.cf configuration files.\n" }, { "name": "daemon_timeout (18000s)", "content": "How much time a Postfix daemon process may take to handle a request before it is ter‐\nminated by a built-in watchdog timer.\n" }, { "name": "delay_logging_resolution_limit (2)", "content": "The maximal number of digits after the decimal point when logging sub-second delay\nvalues.\n" }, { "name": "double_bounce_sender (double-bounce)", "content": "The sender address of postmaster notifications that are generated by the mail system.\n" }, { "name": "ipc_timeout (3600s)", "content": "The time limit for sending or receiving information over an internal communication\nchannel.\n" }, { "name": "max_idle (100s)", "content": "The maximum amount of time that an idle Postfix daemon process waits for an incoming\nconnection before terminating voluntarily.\n" }, { "name": "max_use (100)", "content": "The maximal number of incoming connections that a Postfix daemon process will service\nbefore terminating voluntarily.\n" }, { "name": "notify_classes (resource, software)", "content": "The list of error classes that are reported to the postmaster.\n" }, { "name": "process_id (read-only)", "content": "The process ID of a Postfix command or daemon process.\n" }, { "name": "process_name (read-only)", "content": "The process name of a Postfix command or daemon process.\n" }, { "name": "queue_directory (see 'postconf -d' output)", "content": "The location of the Postfix top-level queue directory.\n" }, { "name": "syslog_facility (mail)", "content": "The syslog facility of Postfix logging.\n" }, { "name": "syslog_name (see 'postconf -d' output)", "content": "A prefix that is prepended to the process name in syslog records, so that, for exam‐\nple, \"smtpd\" becomes \"prefix/smtpd\".\n\nAvailable in Postfix 3.3 and later:\n" }, { "name": "service_name (read-only)", "content": "The master.cf service name of a Postfix daemon process.\n" } ] }, "SEE ALSO": { "content": "qmgr(8), queue manager\nbounce(8), delivery status reports\ndiscard(8), Postfix discard delivery agent\npostconf(5), configuration parameters\nmaster(5), generic daemon options\nmaster(8), process manager\npostlogd(8), Postfix logging\nsyslogd(8), system logging\n", "subsections": [] }, "LICENSE": { "content": "The Secure Mailer license must be distributed with this software.\n\nAUTHOR(S)\nWietse Venema\nIBM T.J. Watson Research\nP.O. Box 704\nYorktown Heights, NY 10598, USA\n\nWietse Venema\nGoogle, Inc.\n111 8th Avenue\nNew York, NY 10011, USA\n\nERROR(8postfix)", "subsections": [] } }, "summary": "error - Postfix error/retry mail delivery agent", "flags": [], "examples": [], "see_also": [ { "name": "qmgr", "section": "8", "url": "https://www.chedong.com/phpMan.php/man/qmgr/8/json" }, { "name": "bounce", "section": "8", "url": "https://www.chedong.com/phpMan.php/man/bounce/8/json" }, { "name": "discard", "section": "8", "url": "https://www.chedong.com/phpMan.php/man/discard/8/json" }, { "name": "postconf", "section": "5", "url": "https://www.chedong.com/phpMan.php/man/postconf/5/json" }, { "name": "master", "section": "5", "url": "https://www.chedong.com/phpMan.php/man/master/5/json" }, { "name": "master", "section": "8", "url": "https://www.chedong.com/phpMan.php/man/master/8/json" }, { "name": "postlogd", "section": "8", "url": "https://www.chedong.com/phpMan.php/man/postlogd/8/json" }, { "name": "syslogd", "section": "8", "url": "https://www.chedong.com/phpMan.php/man/syslogd/8/json" } ] }