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 (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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DIAGNOSTICS

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

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.
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54       The text below provides only a parameter summary. See  postconf(5)  for
55       more details including examples.
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57       2bounce_notice_recipient (postmaster)
58              The  recipient  of undeliverable mail that cannot be returned to
59              the sender.
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61       backwards_bounce_logfile_compatibility (yes)
62              Produce additional bounce(8) logfile records that can be read by
63              Postfix versions before 2.0.
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65       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.
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70       bounce_size_limit (50000)
71              The  maximal  amount  of original message text that is sent in a
72              non-delivery notification.
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74       bounce_template_file (empty)
75              Pathname of a configuration file with bounce message templates.
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77       config_directory (see 'postconf -d' output)
78              The default location of the Postfix main.cf and  master.cf  con‐
79              figuration files.
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81       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.
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85       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.
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90       deliver_lock_attempts (20)
91              The maximal number of attempts to acquire an exclusive lock on a
92              mailbox file or bounce(8) logfile.
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94       deliver_lock_delay (1s)
95              The  time  between  attempts  to  acquire an exclusive lock on a
96              mailbox file or bounce(8) logfile.
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98       ipc_timeout (3600s)
99              The time limit for sending  or  receiving  information  over  an
100              internal communication channel.
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102       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.
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107       mail_name (Postfix)
108              The  mail system name that is displayed in Received: headers, in
109              the SMTP greeting banner, and in bounced mail.
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111       max_idle (100s)
112              The maximum amount of time that an idle Postfix  daemon  process
113              waits for an incoming connection before terminating voluntarily.
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115       max_use (100)
116              The maximal number of incoming connections that a Postfix daemon
117              process will service before terminating voluntarily.
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119       notify_classes (resource, software)
120              The list of error classes that are reported to the postmaster.
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122       process_id (read-only)
123              The process ID of a Postfix command or daemon process.
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125       process_name (read-only)
126              The process name of a Postfix command or daemon process.
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128       queue_directory (see 'postconf -d' output)
129              The location of the Postfix top-level queue directory.
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131       syslog_facility (mail)
132              The syslog facility of Postfix logging.
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134       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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FILES

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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SEE ALSO

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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LICENSE

153       The Secure Mailer license must be distributed with this software.
154

AUTHOR(S)

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