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PICKUP

Section: Maintenance Commands (8)
Index Return to Main Contents
 

NAME

pickup - Postfix local mail pickup  

SYNOPSIS

pickup [generic Postfix daemon options]
 

DESCRIPTION

The pickup(8) daemon waits for hints that new mail has been dropped into the maildrop directory, and feeds it into the cleanup(8) daemon. Ill-formatted files are deleted without notifying the originator. This program expects to be run from the master(8) process manager.  

STANDARDS



None. The pickup(8) daemon does not interact with
the outside world.
 

SECURITY



The pickup(8) daemon is moderately security sensitive. It runs
with fixed low privilege and can run in a chrooted environment.
However, the program reads files from potentially hostile users.
The pickup(8) daemon opens no files for writing, is careful about
what files it opens for reading, and does not actually touch any data
that is sent to its public service endpoint.
 

DIAGNOSTICS

Problems and transactions are logged to syslogd(8).  

BUGS

The pickup(8) daemon copies mail from file to the cleanup(8) daemon. It could avoid message copying overhead by sending a file descriptor instead of file data, but then the already complex cleanup(8) daemon would have to deal with unfiltered user data.  

CONFIGURATION PARAMETERS



As the pickup(8) daemon is a relatively long-running process, up
to an hour may pass before a main.cf change takes effect.
Use the command "postfix reload" command to speed up a change.

The text below provides only a parameter summary. See postconf(5) for more details including examples.  

CONTENT INSPECTION CONTROLS



content_filter (empty)
After the message is queued, send the entire message to the specified transport:destination.
receive_override_options (empty)
Enable or disable recipient validation, built-in content filtering, or address mapping.
 

MISCELLANEOUS CONTROLS



config_directory (see 'postconf -d' output)
The default location of the Postfix main.cf and master.cf configuration files.
ipc_timeout (3600s)
The time limit for sending or receiving information over an internal communication channel.
line_length_limit (2048)
Upon input, long lines are chopped up into pieces of at most this length; upon delivery, long lines are reconstructed.
max_idle (100s)
The maximum amount of time that an idle Postfix daemon process waits for an incoming connection before terminating voluntarily.
max_use (100)
The maximal number of incoming connections that a Postfix daemon process will service before terminating voluntarily.
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 (see 'postconf -d' output)
A prefix that is prepended to the process name in syslog records, so that, for example, "smtpd" becomes "prefix/smtpd".
 

SEE ALSO

cleanup(8), message canonicalization
sendmail(1), Sendmail-compatible interface
postdrop(1), mail posting agent
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

Wietse Venema
Google, Inc.
111 8th Avenue
New York, NY 10011, USA


 

Index

NAME
SYNOPSIS
DESCRIPTION
STANDARDS
SECURITY
DIAGNOSTICS
BUGS
CONFIGURATION PARAMETERS
CONTENT INSPECTION CONTROLS
MISCELLANEOUS CONTROLS
SEE ALSO
LICENSE
AUTHOR(S)


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