PICKUP(8)                                                            PICKUP(8)

       pickup - Postfix local mail pickup

       pickup [generic Postfix daemon options]

       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.

       None. The pickup(8) daemon does not interact with the out-
       side world.

       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 poten-
       tially 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.

       Problems and transactions are logged to syslogd(8).

       The  pickup(8)  daemon  copies  mail  from  file  to   the
       cleanup(8)  daemon.   It could avoid message copying over-
       head 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.

       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_filter (empty)
              The name of a mail delivery transport that  filters
              mail after it is queued.

       receive_override_options (empty)
              Enable  or  disable  recipient validation, built-in
              content filtering, or address mapping.

       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.

       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 termi-
              nating voluntarily.

       process_id (read-only)
              The process ID  of  a  Postfix  command  or  daemon

       process_name (read-only)
              The  process  name  of  a Postfix command or daemon

       queue_directory (see 'postconf -d' output)
              The location of the Postfix top-level queue  direc-

       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".

       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

       The  Secure  Mailer  license must be distributed with this

       Wietse Venema
       IBM T.J. Watson Research
       P.O. Box 704
       Yorktown Heights, NY 10598, USA