1BOUNCE(8) System Manager's Manual BOUNCE(8)
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6 bounce - Postfix delivery status reports
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9 bounce [generic Postfix daemon options]
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12 The bounce(8) daemon maintains per-message log files with delivery sta‐
13 tus information. Each log file is named after the queue file that it
14 corresponds to, and is kept in a queue subdirectory named after the
15 service name in the master.cf file (either bounce, defer or trace).
16 This program expects to be run from the master(8) process manager.
17 The bounce(8) daemon processes two types of service requests:
19 · Append a recipient (non-)delivery status record to a per-message
21 log file.
22 · Enqueue a delivery status notification message, with a copy of a
24 per-message log file and of the corresponding message. When the
25 delivery status notification message is enqueued successfully,
26 the per-message log file is deleted.
27 The software does a best notification effort. A non-delivery notifica‐
29 tion is sent even when the log file or the original message cannot be
30 read.
31 Optionally, a bounce (defer, trace) client can request that the per-
33 message log file be deleted when the requested operation fails. This
34 is used by clients that cannot retry transactions by themselves, and
35 that depend on retry logic in their own client.
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38 RFC 822 (ARPA Internet Text Messages)
39 RFC 2045 (Format of Internet Message Bodies)
40 RFC 2822 (Internet Message Format)
41 RFC 3462 (Delivery Status Notifications)
42 RFC 3464 (Delivery Status Notifications)
43 RFC 3834 (Auto-Submitted: message header)
44 RFC 5322 (Internet Message Format)
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47 Problems and transactions are logged to syslogd(8).
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50 Changes to main.cf are picked up automatically, as bounce(8) processes
51 run for only a limited amount of time. Use the command "postfix reload"
52 to speed up a change.
53 The text below provides only a parameter summary. See postconf(5) for
55 more details including examples.
56 2bounce_notice_recipient (postmaster)
58 The recipient of undeliverable mail that cannot be returned to
59 the sender.
60 backwards_bounce_logfile_compatibility (yes)
62 Produce additional bounce(8) logfile records that can be read by
63 Postfix versions before 2.0.
64 bounce_notice_recipient (postmaster)
66 The recipient of postmaster notifications with the message head‐
67 ers of mail that Postfix did not deliver and of SMTP conversa‐
68 tion transcripts of mail that Postfix did not receive.
69 bounce_size_limit (50000)
71 The maximal amount of original message text that is sent in a
72 non-delivery notification.
73 bounce_template_file (empty)
75 Pathname of a configuration file with bounce message templates.
76 config_directory (see 'postconf -d' output)
78 The default location of the Postfix main.cf and master.cf con‐
79 figuration files.
80 daemon_timeout (18000s)
82 How much time a Postfix daemon process may take to handle a
83 request before it is terminated by a built-in watchdog timer.
84 delay_notice_recipient (postmaster)
86 The recipient of postmaster notifications with the message head‐
87 ers of mail that cannot be delivered within $delay_warning_time
88 time units.
89 deliver_lock_attempts (20)
91 The maximal number of attempts to acquire an exclusive lock on a
92 mailbox file or bounce(8) logfile.
93 deliver_lock_delay (1s)
95 The time between attempts to acquire an exclusive lock on a
96 mailbox file or bounce(8) logfile.
97 ipc_timeout (3600s)
99 The time limit for sending or receiving information over an
100 internal communication channel.
101 internal_mail_filter_classes (empty)
103 What categories of Postfix-generated mail are subject to before-
104 queue content inspection by non_smtpd_milters, header_checks and
105 body_checks.
106 mail_name (Postfix)
108 The mail system name that is displayed in Received: headers, in
109 the SMTP greeting banner, and in bounced mail.
110 max_idle (100s)
112 The maximum amount of time that an idle Postfix daemon process
113 waits for an incoming connection before terminating voluntarily.
114 max_use (100)
116 The maximal number of incoming connections that a Postfix daemon
117 process will service before terminating voluntarily.
118 notify_classes (resource, software)
120 The list of error classes that are reported to the postmaster.
121 process_id (read-only)
123 The process ID of a Postfix command or daemon process.
124 process_name (read-only)
126 The process name of a Postfix command or daemon process.
127 queue_directory (see 'postconf -d' output)
129 The location of the Postfix top-level queue directory.
130 syslog_facility (mail)
132 The syslog facility of Postfix logging.
133 syslog_name (see 'postconf -d' output)
135 The mail system name that is prepended to the process name in
136 syslog records, so that "smtpd" becomes, for example, "post‐
137 fix/smtpd".
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140 /var/spool/postfix/bounce/* non-delivery records
141 /var/spool/postfix/defer/* non-delivery records
142 /var/spool/postfix/trace/* delivery status records
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145 bounce(5), bounce message template format
146 qmgr(8), queue manager
147 postconf(5), configuration parameters
148 master(5), generic daemon options
149 master(8), process manager
150 syslogd(8), system logging
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153 The Secure Mailer license must be distributed with this software.
154
156 Wietse Venema
157 IBM T.J. Watson Research
158 P.O. Box 704
159 Yorktown Heights, NY 10598, USA
160 BOUNCE(8)