1BOUNCE(8)                   System Manager's Manual                  BOUNCE(8)
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NAME

6       bounce - Postfix delivery status reports
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SYNOPSIS

9       bounce [generic Postfix daemon options]
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DESCRIPTION

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.
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18       The bounce(8) daemon processes two types of service requests:
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20       ·      Append a recipient (non-)delivery status record to a per-message
21              log file.
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23       ·      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.
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28       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.
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32       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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STANDARDS

38       RFC 822 (ARPA Internet Text Messages)
39       RFC 2045 (Format of Internet Message Bodies)
40       RFC 2822 (ARPA Internet Text Messages)
41       RFC 3462 (Delivery Status Notifications)
42       RFC 3464 (Delivery Status Notifications)
43       RFC 3834 (Auto-Submitted: message header)
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DIAGNOSTICS

46       Problems and transactions are logged to syslogd(8).
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CONFIGURATION PARAMETERS

49       Changes to main.cf are picked up automatically, as bounce(8)  processes
50       run for only a limited amount of time. Use the command "postfix reload"
51       to speed up a change.
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53       The text below provides only a parameter summary. See  postconf(5)  for
54       more details including examples.
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56       2bounce_notice_recipient (postmaster)
57              The  recipient  of undeliverable mail that cannot be returned to
58              the sender.
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60       backwards_bounce_logfile_compatibility (yes)
61              Produce additional bounce(8) logfile records that can be read by
62              Postfix versions before 2.0.
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64       bounce_notice_recipient (postmaster)
65              The recipient of postmaster notifications with the message head‐
66              ers of mail that Postfix did not deliver and of  SMTP  conversa‐
67              tion transcripts of mail that Postfix did not receive.
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69       bounce_size_limit (50000)
70              The  maximal  amount  of original message text that is sent in a
71              non-delivery notification.
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73       bounce_template_file (empty)
74              Pathname of a configuration file with bounce message templates.
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76       config_directory (see 'postconf -d' output)
77              The default location of the Postfix main.cf and  master.cf  con‐
78              figuration files.
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80       daemon_timeout (18000s)
81              How  much  time  a  Postfix  daemon process may take to handle a
82              request before it is terminated by a built-in watchdog timer.
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84       delay_notice_recipient (postmaster)
85              The recipient of postmaster notifications with the message head‐
86              ers  of mail that cannot be delivered within $delay_warning_time
87              time units.
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89       deliver_lock_attempts (20)
90              The maximal number of attempts to acquire an exclusive lock on a
91              mailbox file or bounce(8) logfile.
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93       deliver_lock_delay (1s)
94              The  time  between  attempts  to  acquire an exclusive lock on a
95              mailbox file or bounce(8) logfile.
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97       ipc_timeout (3600s)
98              The time limit for sending  or  receiving  information  over  an
99              internal communication channel.
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101       internal_mail_filter_classes (empty)
102              What categories of Postfix-generated mail are subject to before-
103              queue content inspection by non_smtpd_milters, header_checks and
104              body_checks.
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106       mail_name (Postfix)
107              The  mail system name that is displayed in Received: headers, in
108              the SMTP greeting banner, and in bounced mail.
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110       max_idle (100s)
111              The maximum amount of time that an idle Postfix  daemon  process
112              waits for an incoming connection before terminating voluntarily.
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114       max_use (100)
115              The maximal number of incoming connections that a Postfix daemon
116              process will service before terminating voluntarily.
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118       notify_classes (resource, software)
119              The list of error classes that are reported to the postmaster.
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121       process_id (read-only)
122              The process ID of a Postfix command or daemon process.
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124       process_name (read-only)
125              The process name of a Postfix command or daemon process.
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127       queue_directory (see 'postconf -d' output)
128              The location of the Postfix top-level queue directory.
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130       syslog_facility (mail)
131              The syslog facility of Postfix logging.
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133       syslog_name (see 'postconf -d' output)
134              The mail system name that is prepended to the  process  name  in
135              syslog  records,  so  that  "smtpd" becomes, for example, "post‐
136              fix/smtpd".
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FILES

139       /var/spool/postfix/bounce/* non-delivery records
140       /var/spool/postfix/defer/* non-delivery records
141       /var/spool/postfix/trace/* delivery status records
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SEE ALSO

144       bounce(5), bounce message template format
145       qmgr(8), queue manager
146       postconf(5), configuration parameters
147       master(5), generic daemon options
148       master(8), process manager
149       syslogd(8), system logging
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LICENSE

152       The Secure Mailer license must be distributed with this software.
153

AUTHOR(S)

155       Wietse Venema
156       IBM T.J. Watson Research
157       P.O. Box 704
158       Yorktown Heights, NY 10598, USA
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162                                                                     BOUNCE(8)
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