error - Postfix error mail delivery agent
error [generic Postfix daemon options]
The Postfix error(8) delivery agent processes delivery
requests from the queue manager. Each request specifies a
queue file, a sender address, a domain or host name that
is treated as the reason for non-delivery, and recipient
information. The reason may be prefixed with an RFC
3463-compatible detail code. This program expects to be
run from the master(8) process manager.
The error(8) delivery agent bounces all recipients in the
delivery request using the "next-hop" domain or host
information as the reason for non-delivery, updates the
queue file and marks recipients as finished or informs the
queue manager that delivery should be tried again at a
Delivery status reports are sent to the bounce(8),
defer(8) or trace(8) daemon as appropriate.
The error(8) mailer is not security-sensitive. It does not
talk to the network, and can be run chrooted at fixed low
RFC 3463 (Enhanced Status Codes)
Problems and transactions are logged to syslogd(8).
Depending on the setting of the notify_classes parameter,
the postmaster is notified of bounces and of other trou-
Changes to main.cf are picked up automatically as error(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.
The recipient of undeliverable mail that cannot be
returned to the sender.
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.
config_directory (see 'postconf -d' output)
The default location of the Postfix main.cf and
master.cf configuration files.
How much time a Postfix daemon process may take to
handle a request before it is terminated by a
built-in watchdog timer.
The maximal number of digits after the decimal
point when logging sub-second delay values.
The sender address of postmaster notifications that
are generated by the mail system.
The time limit for sending or receiving information
over an internal communication channel.
The maximum amount of time that an idle Postfix
daemon process waits for the next service request
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
The process ID of a Postfix command or daemon
The process name of a Postfix command or daemon
queue_directory (see 'postconf -d' output)
The location of the Postfix top-level queue direc-
The syslog facility of Postfix logging.
The mail system name that is prepended to the
process name in syslog records, so that "smtpd"
becomes, for example, "postfix/smtpd".
qmgr(8), queue manager
bounce(8), delivery status reports
discard(8), Postfix discard delivery agent
postconf(5), configuration parameters
master(5), generic daemon options
master(8), process manager
syslogd(8), system logging
The Secure Mailer license must be distributed with this
IBM T.J. Watson Research
P.O. Box 704
Yorktown Heights, NY 10598, USA