1POSTDROP(1) General Commands Manual POSTDROP(1)
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6 postdrop - Postfix mail posting utility
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9 postdrop [-rv] [-c config_dir]
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12 The postdrop(1) command creates a file in the maildrop directory and
13 copies its standard input to the file.
14 Options:
16 -c config_dir
18 The main.cf configuration file is in the named directory instead
19 of the default configuration directory. See also the MAIL_CONFIG
20 environment setting below.
21 -r Use a Postfix-internal protocol for reading the message from
23 standard input, and for reporting status information on standard
24 output. This is currently the only supported method.
25 -v Enable verbose logging for debugging purposes. Multiple -v
27 options make the software increasingly verbose. As of Postfix
28 2.3, this option is available for the super-user only.
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31 The command is designed to run with set-group ID privileges, so that it
32 can write to the maildrop queue directory and so that it can connect to
33 Postfix daemon processes.
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36 Fatal errors: malformed input, I/O error, out of memory. Problems are
37 logged to syslogd(8) and to the standard error stream. When the input
38 is incomplete, or when the process receives a HUP, INT, QUIT or TERM
39 signal, the queue file is deleted.
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42 MAIL_CONFIG
43 Directory with the main.cf file. In order to avoid exploitation
44 of set-group ID privileges, a non-standard directory is allowed
45 only if:
46 · The name is listed in the standard main.cf file with the
48 alternate_config_directories configuration parameter.
49 · The command is invoked by the super-user.
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53 The following main.cf parameters are especially relevant to this pro‐
54 gram. The text below provides only a parameter summary. See post‐
55 conf(5) for more details including examples.
56 alternate_config_directories (empty)
58 A list of non-default Postfix configuration directories that may
59 be specified with "-c config_directory" on the command line, or
60 via the MAIL_CONFIG environment parameter.
61 config_directory (see 'postconf -d' output)
63 The default location of the Postfix main.cf and master.cf con‐
64 figuration files.
65 import_environment (see 'postconf -d' output)
67 The list of environment parameters that a Postfix process will
68 import from a non-Postfix parent process.
69 queue_directory (see 'postconf -d' output)
71 The location of the Postfix top-level queue directory.
72 syslog_facility (mail)
74 The syslog facility of Postfix logging.
75 syslog_name (see 'postconf -d' output)
77 The mail system name that is prepended to the process name in
78 syslog records, so that "smtpd" becomes, for example, "post‐
79 fix/smtpd".
80 trigger_timeout (10s)
82 The time limit for sending a trigger to a Postfix daemon (for
83 example, the pickup(8) or qmgr(8) daemon).
84 Available in Postfix version 2.2 and later:
86 authorized_submit_users (static:anyone)
88 List of users who are authorized to submit mail with the send‐
89 mail(1) command (and with the privileged postdrop(1) helper com‐
90 mand).
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93 /var/spool/postfix/maildrop, maildrop queue
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96 sendmail(1), compatibility interface
97 postconf(5), configuration parameters
98 syslogd(8), system logging
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101 The Secure Mailer license must be distributed with this software.
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104 Wietse Venema
105 IBM T.J. Watson Research
106 P.O. Box 704
107 Yorktown Heights, NY 10598, USA
108 POSTDROP(1)