PICKUP(8) System Manager's Manual PICKUP(8)

# [NAME](#NAME)

pickup - Postfix local mail pickup

# [SYNOPSIS](#SYNOPSIS)

```
pickup [generic Postfix daemon options]
```

# [DESCRIPTION](#DESCRIPTION)

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

# [STANDARDS](#STANDARDS)

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```

None. The [**pickup**(8)](/man/os/postfix/pickup.8) daemon does not interact with the outside world.

# [SECURITY](#SECURITY)

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```

The [**pickup**(8)](/man/os/postfix/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)](/man/os/postfix/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](#DIAGNOSTICS)

Problems and transactions are logged to [**syslogd**(8)](/man/os/postfix/syslogd.8) or [**postlogd**(8)](/man/os/postfix/postlogd.8).

# [BUGS](#BUGS)

The [**pickup**(8)](/man/os/postfix/pickup.8) daemon copies mail from file to the [**cleanup**(8)](/man/os/postfix/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)](/man/os/postfix/cleanup.8) daemon would have to deal with unfiltered user data.

# [CONFIGURATION PARAMETERS](#CONFIGURATION_PARAMETERS)

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```

As the [**pickup**(8)](/man/os/postfix/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)](/man/os/postfix/postconf.5) for more details including examples.

# [CONTENT INSPECTION CONTROLS](#CONTENT_INSPECTION_CONTROLS)

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[**content\_filter (empty)**](#content_filter)

After the message is queued, send the entire message to the specified *transport:destination*.

[**receive\_override\_options (empty)**](#receive_override_options)

Enable or disable recipient validation, built-in content filtering, or address mapping.

# [MISCELLANEOUS CONTROLS](#MISCELLANEOUS_CONTROLS)

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[**config\_directory (see 'postconf -d' output)**](#config_directory)

The default location of the Postfix main.cf and master.cf configuration files.

[**ipc\_timeout (3600s)**](#ipc_timeout)

The time limit for sending or receiving information over an internal communication channel.

[**line\_length\_limit (2048)**](#line_length_limit)

Upon input, long lines are chopped up into pieces of at most this length; upon delivery, long lines are reconstructed.

[**max\_idle (100s)**](#max_idle)

The maximum amount of time that an idle Postfix daemon process waits for an incoming connection before terminating voluntarily.

[**max\_use (100)**](#max_use)

The maximal number of incoming connections that a Postfix daemon process will service before terminating voluntarily.

[**process\_id (read-only)**](#process_id)

The process ID of a Postfix command or daemon process.

[**process\_name (read-only)**](#process_name)

The process name of a Postfix command or daemon process.

[**queue\_directory (see 'postconf -d' output)**](#queue_directory)

The location of the Postfix top-level queue directory.

[**syslog\_facility (mail)**](#syslog_facility)

The syslog facility of Postfix logging.

[**syslog\_name (see 'postconf -d' output)**](#syslog_name)

A prefix that is prepended to the process name in syslog records, so that, for example, "smtpd" becomes "prefix/smtpd".

Available in Postfix 3.3 and later:

[**service\_name (read-only)**](#service_name)

The master.cf service name of a Postfix daemon process.

Available in Postfix 3.5 and later:

[**info\_log\_address\_format (external)**](#info_log_address_format)

The email address form that will be used in non-debug logging (info, warning, etc.).

# [SEE ALSO](#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
postlogd(8), Postfix logging
syslogd(8), system logging
```

# [LICENSE](#LICENSE)

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```

The Secure Mailer license must be distributed with this software.

# [AUTHOR(S)](#AUTHOR%28S%29)

```
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
```

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Document: pickup(8) from postfix 3.11.7-r3 (Chainguard OS)
Source: https://github.com/vdukhovni/postfix