# POSTDROP(1) - man - phpman [POSTDROP(1)](https://www.chedong.com/phpMan.php/man/POSTDROP/1/markdown) General Commands Manual [POSTDROP(1)](https://www.chedong.com/phpMan.php/man/POSTDROP/1/markdown) ## NAME postdrop - Postfix mail posting utility ## SYNOPSIS **postdrop** [**-rv**] [**-c** _config_dir_] ## DESCRIPTION The [**postdrop**(1)](https://www.chedong.com/phpMan.php/man/postdrop/1/markdown) command creates a file in the **maildrop** directory and copies its standard in‐ put to the file. Options: ### -c The **main.cf** configuration file is in the named directory instead of the default con‐ figuration directory. See also the MAIL_CONFIG environment setting below. ### -r reporting status information on standard output. This is currently the only supported method. ### -v -v increasingly verbose. As of Postfix 2.3, this option is available for the super-user only. ## SECURITY The command is designed to run with set-group ID privileges, so that it can write to the **maildrop** queue directory and so that it can connect to Postfix daemon processes. ## DIAGNOSTICS Fatal errors: malformed input, I/O error, out of memory. Problems are logged to [**syslogd**(8)](https://www.chedong.com/phpMan.php/man/syslogd/8/markdown) or [**postlogd**(8)](https://www.chedong.com/phpMan.php/man/postlogd/8/markdown) and to the standard error stream. When the input is incomplete, or when the process receives a HUP, INT, QUIT or TERM signal, the queue file is deleted. ## ENVIRONMENT MAIL_CONFIG Directory with the **main.cf** file. In order to avoid exploitation of set-group ID privi‐ leges, a non-standard directory is allowed only if: • The name is listed in the standard **main.cf** file with the **alternate**___**config**___**di**‐‐ **rectories** configuration parameter. • The command is invoked by the super-user. ## CONFIGURATION PARAMETERS The following **main.cf** parameters are especially relevant to this program. The text below provides only a parameter summary. See [**postconf**(5)](https://www.chedong.com/phpMan.php/man/postconf/5/markdown) for more details including examples. **alternate**___**config**___**directories** **(empty)** A list of non-default Postfix configuration directories that may be specified with "-c config_directory" on the command line (in the case of [**sendmail**(1)](https://www.chedong.com/phpMan.php/man/sendmail/1/markdown), with the "-C" op‐ tion), or via the MAIL_CONFIG environment parameter. **config**___**directory** **(see** **'postconf** **-d'** **output)** The default location of the Postfix main.cf and master.cf configuration files. **import**___**environment** **(see** **'postconf** **-d'** **output)** The list of environment parameters that a privileged Postfix process will import from a non-Postfix parent process, or name=value environment overrides. **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 exam‐ ple, "smtpd" becomes "prefix/smtpd". **trigger**___**timeout** **(10s)** The time limit for sending a trigger to a Postfix daemon (for example, the [**pickup**(8)](https://www.chedong.com/phpMan.php/man/pickup/8/markdown) or [**qmgr**(8)](https://www.chedong.com/phpMan.php/man/qmgr/8/markdown) daemon). Available in Postfix version 2.2 and later: **authorized**___**submit**___**users** **(static:anyone)** List of users who are authorized to submit mail with the [**sendmail**(1)](https://www.chedong.com/phpMan.php/man/sendmail/1/markdown) command (and with the privileged [**postdrop**(1)](https://www.chedong.com/phpMan.php/man/postdrop/1/markdown) helper command). Available in Postfix version 3.6 and later: **local**___**login**___**sender**___**maps** **(static:*)** A list of lookup tables that are searched by the UNIX login name, and that return a list of allowed envelope sender patterns separated by space or comma. **empty**___**address**___**local**___**login**___**sender**___**maps**___**lookup**___**key** **(<>)** The lookup key to be used in local_login_sender_maps tables, instead of the null sender address. **recipient**___**delimiter** **(empty)** The set of characters that can separate an email address localpart, user name, or a .forward file name from its extension. ## FILES /var/spool/postfix/maildrop, maildrop queue ## SEE ALSO [sendmail(1)](https://www.chedong.com/phpMan.php/man/sendmail/1/markdown), compatibility interface [postconf(5)](https://www.chedong.com/phpMan.php/man/postconf/5/markdown), configuration parameters [postlogd(8)](https://www.chedong.com/phpMan.php/man/postlogd/8/markdown), Postfix logging [syslogd(8)](https://www.chedong.com/phpMan.php/man/syslogd/8/markdown), 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 [POSTDROP(1)](https://www.chedong.com/phpMan.php/man/POSTDROP/1/markdown)