BOUNCE(8) System Manager's Manual BOUNCE(8)
bounce - Postfix message bounce or defer daemon
bounce [generic Postfix daemon options]
The bounce daemon maintains per-message log files with non-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 or defer). This pro-
gram expects to be run from the master(8) process manager.
The bounce daemon processes two types of service requests:
o Append a recipient status record to a per-message log file.
o Post a bounce message, with a copy of a log file and of the cor-
responding message. When the bounce is posted successfully, the
log file is deleted.
The software does a best effort to notify the sender that there was a
problem. A notification is sent even when the log file or original mes-
sage cannot be read.
Optionally, a 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.
RFC 822 (ARPA Internet Text Messages)
RFC 1894 (Delivery Status Notifications)
RFC 2045 (Format of Internet Message Bodies)
Problems and transactions are logged to syslogd(8).
The log files use an ad-hoc, unstructured format. This will have to
change in order to easily support standard delivery status notifica-
The following main.cf parameters are especially relevant to this pro-
gram. See the Postfix main.cf file for syntax details and for default
values. Use the postfix reload command after a configuration change.
The recipient of single bounce postmaster notices.
The recipient of double bounce postmaster notices.
The recipient of "delayed mail" postmaster notices.
Limit the amount of original message context that is sent in a
Use this mail system name in the introductory text at the start
of a bounce message.
Notify the postmaster of bounced mail when this parameter
includes the bounce class. For privacy reasons, the message body
is not included.
master(8) process manager
qmgr(8) queue manager
syslogd(8) system logging
The Secure Mailer license must be distributed with this software.
IBM T.J. Watson Research
P.O. Box 704
Yorktown Heights, NY 10598, USA