<b><a name="description">DESCRIPTION</a></b>
The <a href="postdrop.1.html"><b>postdrop</b>(1)</a> command creates a file in the <b>maildrop</b> directory and
copies its standard input to the file.
Options:
<b>-c</b> <i>config</i><b>_</b><i>dir</i>
The <a href="postconf.5.html"><b>main.cf</b></a> configuration file is in the named directory instead
of the default configuration directory. See also the MAIL_CONFIG
environment setting below.
<b>-r</b> Use a Postfix-internal protocol for reading the message from
standard input, and for reporting status information on standard output. This is currently the only supported method.
<b>-v</b> Enable verbose logging for debugging purposes. Multiple <b>-v</b>
options make the software increasingly verbose. As of Postfix 2.3, this option is available for the super-user only.
<b><a name="security">SECURITY</a></b>
The command is designed to run with set-group ID privileges, so that it
can write to the <b>maildrop</b> queue directory and so that it can connect to
Postfix daemon processes.
<b><a name="diagnostics">DIAGNOSTICS</a></b>
Fatal errors: malformed input, I/O error, out of memory. Problems are
logged to <b>syslogd</b>(8) or <a href="postlogd.8.html"><b>postlogd</b>(8)</a> 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.
<b><a name="environment">ENVIRONMENT</a></b>
MAIL_CONFIG
Directory with the <a href="postconf.5.html"><b>main.cf</b></a> file. In order to avoid exploitation
of set-group ID privileges, a non-default directory is allowed
only if:
<b>o</b> The name is listed in the default <a href="postconf.5.html"><b>main.cf</b></a> file with the
<b><a href="postconf.5.html#alternate_config_directories">alternate_config_directories</a></b> or <b><a href="postconf.5.html#multi_instance_directories">multi_instance_directo</a>-</b>
<b><a href="postconf.5.html#multi_instance_directories">ries</a></b> configuration parameter.
<b>o</b> The command is invoked by the super-user.
<b><a name="configuration_parameters">CONFIGURATION PARAMETERS</a></b>
The following <a href="postconf.5.html"><b>main.cf</b></a> parameters are especially relevant to this pro-
gram. The text below provides only a parameter summary. See <a href="postconf.5.html"><b>post-</b></a>
<a href="postconf.5.html"><b>conf</b>(5)</a> for more details including examples.
<b><a href="postconf.5.html#alternate_config_directories">alternate_config_directories</a> (empty)</b> A list of non-default Postfix configuration directories that may
be specified with "-c <a href="postconf.5.html#config_directory">config_directory</a>" on the command line (in
the case of <a href="sendmail.1.html"><b>sendmail</b>(1)</a>, with the "-C"option), or via the
MAIL_CONFIG environment parameter.
<b><a href="postconf.5.html#config_directory">config_directory</a> (see 'postconf -d'output)</b>
The default location of the Postfix <a href="postconf.5.html">main.cf</a> and <a href="master.5.html">master.cf</a> con-
figuration files.
<b><a href="postconf.5.html#import_environment">import_environment</a> (see 'postconf -d'output)</b>
The list of environment variables that a privileged Postfix
process will import from a non-Postfix parent process, or
name=value environment overrides.
<b><a href="postconf.5.html#queue_directory">queue_directory</a> (see 'postconf -d'output)</b>
The location of the Postfix top-level queue directory.
<b><a href="postconf.5.html#syslog_facility">syslog_facility</a> (mail)</b>
The syslog facility of Postfix logging.
<b><a href="postconf.5.html#syslog_name">syslog_name</a> (see 'postconf -d'output)</b> A prefix that is prepended to the process name in syslog
records, so that, for example, "smtpd" becomes "prefix/smtpd".
<b><a href="postconf.5.html#trigger_timeout">trigger_timeout</a> (10s)</b>
The time limit for sending a trigger to a Postfix daemon (for
example, the <a href="pickup.8.html"><b>pickup</b>(8)</a> or <a href="qmgr.8.html"><b>qmgr</b>(8)</a> daemon).
Available in Postfix version 2.2 and later:
<b><a href="postconf.5.html#authorized_submit_users">authorized_submit_users</a> (<a href="DATABASE_README.html#types">static</a>:anyone)</b>
List of users who are authorized to submit mail with the <a href="sendmail.1.html"><b>send-</b></a>
<a href="sendmail.1.html"><b>mail</b>(1)</a> command (and with the privileged <a href="postdrop.1.html"><b>postdrop</b>(1)</a> helper com-
mand).
Available in Postfix version 3.6 and later:
<b><a href="postconf.5.html#local_login_sender_maps">local_login_sender_maps</a> (<a href="DATABASE_README.html#types">static</a>:*)</b> 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.
<b><a href="postconf.5.html#empty_address_local_login_sender_maps_lookup_key">empty_address_local_login_sender_maps_lookup_key</a> (</b><><b>)</b>
The lookup key to be used in <a href="postconf.5.html#local_login_sender_maps">local_login_sender_maps</a> tables,
instead of the null sender address.
<b><a href="postconf.5.html#recipient_delimiter">recipient_delimiter</a> (empty)</b>
The set of characters that can separate an email address local-
part, user name, or a .forward file name from its extension.
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