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defer (8)
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NAME
bounce
-
Postfix delivery status reports
SYNOPSIS
bounce [generic Postfix daemon options]
DESCRIPTION
The bounce(8) daemon maintains per-message log files with
delivery status information. Each log file is named after the
queue file that it corresponds to, and is kept in a queue subdirectory
named after the service name in the master.cf file (either
bounce, defer or trace).
This program expects to be run from the master(8) process
manager.
The bounce(8) daemon processes two types of service requests:
*
Append a recipient (non-)delivery status record to a per-message
log file.
*
Enqueue a bounce message, with a copy of a per-message log file
and of the corresponding message. When the bounce message is
enqueued successfully, the per-message log file is deleted.
The software does a best notification effort. A non-delivery
notification is sent even when the log file or the original
message cannot be read.
Optionally, a bounce (defer, trace) client can request that the
per-message log file be deleted when the requested operation fails.
This is used by clients that cannot retry transactions by
themselves, and that depend on retry logic in their own client.
STANDARDS
RFC 822 (ARPA Internet Text Messages)
RFC 2045 (Format of Internet Message Bodies)
RFC 2822 (ARPA Internet Text Messages)
RFC 3462 (Delivery Status Notifications)
RFC 3464 (Delivery Status Notifications)
RFC 3834 (Auto-Submitted: message header)
DIAGNOSTICS
Problems and transactions are logged to syslogd(8).
CONFIGURATION PARAMETERS
Changes to main.cf are picked up automatically, as bounce(8)
processes run for only a limited amount of time. Use the command
"postfix reload" to speed up a change.
The text below provides only a parameter summary. See
postconf(5) for more details including examples.
2bounce_notice_recipient (postmaster)
The recipient of undeliverable mail that cannot be returned to
the sender.
backwards_bounce_logfile_compatibility (yes)
Produce additional bounce(8) logfile records that can be read by
Postfix versions before 2.0.
bounce_notice_recipient (postmaster)
The recipient of postmaster notifications with the message headers
of mail that Postfix did not deliver and of SMTP conversation
transcripts of mail that Postfix did not receive.
bounce_size_limit (50000)
The maximal amount of original message text that is sent in a
non-delivery notification.
bounce_template_file (empty)
Pathname of a configuration file with bounce message templates.
config_directory (see 'postconf -d' output)
The default location of the Postfix main.cf and master.cf
configuration files.
daemon_timeout (18000s)
How much time a Postfix daemon process may take to handle a
request before it is terminated by a built-in watchdog timer.
delay_notice_recipient (postmaster)
The recipient of postmaster notifications with the message headers
of mail that cannot be delivered within $delay_warning_time time
units.
deliver_lock_attempts (20)
The maximal number of attempts to acquire an exclusive lock on a
mailbox file or bounce(8) logfile.
deliver_lock_delay (1s)
The time between attempts to acquire an exclusive lock on a mailbox
file or bounce(8) logfile.
ipc_timeout (3600s)
The time limit for sending or receiving information over an internal
communication channel.
internal_mail_filter_classes (empty)
What categories of Postfix-generated mail are subject to
before-queue content inspection by non_smtpd_milters, header_checks
and body_checks.
mail_name (Postfix)
The mail system name that is displayed in Received: headers, in
the SMTP greeting banner, and in bounced mail.
max_idle (100s)
The maximum amount of time that an idle Postfix daemon process
waits for the next service request before exiting.
max_use (100)
The maximal number of connection requests before a Postfix daemon
process terminates.
notify_classes (resource, software)
The list of error classes that are reported to the postmaster.
process_id (read-only)
The process ID of a Postfix command or daemon process.
process_name (read-only)
The process name of a Postfix command or daemon process.
queue_directory (see 'postconf -d' output)
The location of the Postfix top-level queue directory.
syslog_facility (mail)
The syslog facility of Postfix logging.
syslog_name (postfix)
The mail system name that is prepended to the process name in syslog
records, so that "smtpd" becomes, for example, "postfix/smtpd".
FILES
/var/spool/postfix/bounce/* non-delivery records
/var/spool/postfix/defer/* non-delivery records
/var/spool/postfix/trace/* delivery status records
SEE ALSO
bounce(5), bounce message template format
qmgr(8), queue manager
postconf(5), configuration parameters
master(5), generic daemon options
master(8), process manager
syslogd(8), system logging
LICENSE
The Secure Mailer license must be distributed with this software.
AUTHOR(S)
Wietse Venema
IBM T.J. Watson Research
P.O. Box 704
Yorktown Heights, NY 10598, USA
