delivery¶

Name¶

delivery — Backend for local delivery

Synopsis¶

delivery [-c config]

Options¶

-c config: Read configuration directives from the given file. If this option is not specified, /etc/gromox/delivery.cfg will be read if it exists.
-?: Display option summary.

All time-based command-line options and configuration file directives are subject to the syntax described in gromox(7), section "Duration specifications".

Plugins¶

The delivery daemon can be extended by a number of plugins. In Gromox, their filenames begin with libmtahook_.

Configuration directives (gromox.cfg)¶

The following directives are recognized when reading from /etc/gromox/gromox.cfg, or when the -c option is used to specify a custom file:

daemons_fd_limit: In gromox-delivery, this is treated as an alias for lda_fd_limit.
lda_fd_limit: Request that the file descriptor table be at least this large. The magic value 0 indicates that the system default hard limit (rlim_max, cf. setrlimit(2)) should be used.

Default: 0
outgoing_smtp_url: The SMTP server to use for outgoing mails. To use the local maildrop queue, set the value to sendmail://localhost. smtp:// is unqueued(!), and if the SMTP server is offline, submissions cannot be carried out.

Default: smtp://%3a%3a1:25/

Configuration directives (delivery.cfg)¶

The following directives are recognized when reading from /etc/gromox/delivery.cfg, or when the -c option is used to specify a custom file:

admin_mailbox: An e-mail address where to send reports from the "net_failure" code component.

Default: (empty)
config_file_path: Colon-separated list of directories in which further configuration files, especially those used by plugin instances, will be searched.

Default: /etc/gromox/delivery:/etc/gromox
data_file_path: Colon-separated list of directories in which static data files will be searched.

Default: /usr/share/gromox/delivery
dequeue_max_mem: Default: 1024M
dequeue_path: Default: /var/lib/gromox/queue
free_context_num: Default: 512
host_id: A unique identifier for this system. It is used for the DSN text of bounce messages. It is used as the value for the EHLO command if and when connecting to an SMTP service (e.g. inbox rules that do forwarding).

Default: (system hostname)
lda_log_file: Target for log messages here. Special values: "-" (stderr/syslog depending on parent PID) or "syslog" are recognized.

Default: - (auto)
lda_log_level: Maximum verbosity of logging. 1=crit, 2=error, 3=warn, 4=notice, 5=info, 6=debug.

Default: 4 (notice)
running_identity: An unprivileged user account to switch the process to after startup.

Default: gromox
state_path: Directory for runtime variadic data.

Default: /var/lib/gromox
work_threads_max: The number of threads that gromox-delivery may spawn to process incoming messages. This number must be less-or-equal to the exmdb_local(4) exmdb_connection_num directive to avoid rejection of messages in a message storm.

Default: 5
work_threads_min: Default: 1

Files¶

/usr/lib/gromox/libgxm_*.so: hook plugins
/usr/lib/gromox/libgxs_*.so: service plugins