1ERROR(8) System Manager's Manual ERROR(8)
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6 error - Postfix error/retry mail delivery agent
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9 error [generic Postfix daemon options]
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12 The Postfix error(8) delivery agent processes delivery requests from
13 the queue manager. Each request specifies a queue file, a sender
14 address, the reason for non-delivery (specified as the next-hop desti‐
15 nation), and recipient information. The reason may be prefixed with an
16 RFC 3463-compatible detail code. This program expects to be run from
17 the master(8) process manager.
18 Depending on the service name in master.cf, error or retry, the server
20 bounces or defers all recipients in the delivery request using the
21 "next-hop" information as the reason for non-delivery. The retry ser‐
22 vice name is supported as of Postfix 2.4.
23 Delivery status reports are sent to the bounce(8), defer(8) or trace(8)
25 daemon as appropriate.
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28 The error(8) mailer is not security-sensitive. It does not talk to the
29 network, and can be run chrooted at fixed low privilege.
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32 RFC 3463 (Enhanced Status Codes)
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35 Problems and transactions are logged to syslogd(8).
36 Depending on the setting of the notify_classes parameter, the postmas‐
38 ter is notified of bounces and of other trouble.
39
41 Changes to main.cf are picked up automatically as error(8) processes
42 run for only a limited amount of time. Use the command "postfix reload"
43 to speed up a change.
44 The text below provides only a parameter summary. See postconf(5) for
46 more details including examples.
47 2bounce_notice_recipient (postmaster)
49 The recipient of undeliverable mail that cannot be returned to
50 the sender.
51 bounce_notice_recipient (postmaster)
53 The recipient of postmaster notifications with the message head‐
54 ers of mail that Postfix did not deliver and of SMTP conversa‐
55 tion transcripts of mail that Postfix did not receive.
56 config_directory (see 'postconf -d' output)
58 The default location of the Postfix main.cf and master.cf con‐
59 figuration files.
60 daemon_timeout (18000s)
62 How much time a Postfix daemon process may take to handle a
63 request before it is terminated by a built-in watchdog timer.
64 delay_logging_resolution_limit (2)
66 The maximal number of digits after the decimal point when log‐
67 ging sub-second delay values.
68 double_bounce_sender (double-bounce)
70 The sender address of postmaster notifications that are gener‐
71 ated by the mail system.
72 ipc_timeout (3600s)
74 The time limit for sending or receiving information over an
75 internal communication channel.
76 max_idle (100s)
78 The maximum amount of time that an idle Postfix daemon process
79 waits for an incoming connection before terminating voluntarily.
80 max_use (100)
82 The maximal number of incoming connections that a Postfix daemon
83 process will service before terminating voluntarily.
84 notify_classes (resource, software)
86 The list of error classes that are reported to the postmaster.
87 process_id (read-only)
89 The process ID of a Postfix command or daemon process.
90 process_name (read-only)
92 The process name of a Postfix command or daemon process.
93 queue_directory (see 'postconf -d' output)
95 The location of the Postfix top-level queue directory.
96 syslog_facility (mail)
98 The syslog facility of Postfix logging.
99 syslog_name (postfix)
101 The mail system name that is prepended to the process name in
102 syslog records, so that "smtpd" becomes, for example, "post‐
103 fix/smtpd".
104
106 qmgr(8), queue manager
107 bounce(8), delivery status reports
108 discard(8), Postfix discard delivery agent
109 postconf(5), configuration parameters
110 master(5), generic daemon options
111 master(8), process manager
112 syslogd(8), system logging
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115 The Secure Mailer license must be distributed with this software.
116
118 Wietse Venema
119 IBM T.J. Watson Research
120 P.O. Box 704
121 Yorktown Heights, NY 10598, USA
122 ERROR(8)