Linux 2.6 - man page for postlock (linux section 1)
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postlock - lock mail folder and execute command
postlock [-c config_dir] [-l lock_style]
[-v] file command...
The postlock(1) command locks file for exclusive access, and executes command. The locking
method is compatible with the Postfix UNIX-style local delivery agent.
Read the main.cf configuration file in the named directory instead of the default
Override the locking method specified via the mailbox_delivery_lock configuration
parameter (see below).
-v Enable verbose logging for debugging purposes. Multiple -v options make the soft-
ware increasingly verbose.
file A mailbox file. The user should have read/write permission.
The command to execute while file is locked for exclusive access. The command is
executed directly, i.e. without interpretation by a shell command interpreter.
The result status is 75 (EX_TEMPFAIL) when postlock(1) could not perform the requested
operation. Otherwise, the exit status is the exit status from the command.
With remote file systems, the ability to acquire a lock does not necessarily eliminate
access conflicts. Avoid file access by processes running on different machines.
Directory with Postfix configuration files.
Enable verbose logging for debugging purposes.
The following main.cf parameters are especially relevant to this program. The text below
provides only a parameter summary. See postconf(5) for more details including examples.
The maximal number of attempts to acquire an exclusive lock on a mailbox file or
The time between attempts to acquire an exclusive lock on a mailbox file or
The time after which a stale exclusive mailbox lockfile is removed.
mailbox_delivery_lock (see 'postconf -d' output)
How to lock a UNIX-style local(8) mailbox before attempting delivery.
RESOURCE AND RATE CONTROLS
The maximal number of attempts to fork() a child process.
The delay between attempts to fork() a child process.
config_directory (see 'postconf -d' output)
The default location of the Postfix main.cf and master.cf configuration files.
postconf(5), configuration parameters
The Secure Mailer license must be distributed with this software.
IBM T.J. Watson Research
P.O. Box 704
Yorktown Heights, NY 10598, USA
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