/etc/smtpd/mailname
Alternate server name to use.
smtpd8
Simple mail transfer protocol (smtp) daemon
Usage
smtpd [-dFhnv]
[-D
macro=value]
[-f
file]
[-P
system]
[-T
trace]
Overview
smtpd is a Simple Mail Transfer Protocol (SMTP) daemon which can be used as a machine's primary mail system. smtpd can listen on a network interface and handle SMTP transactions; it can also be fed messages through the standard sendmail(8) interface. It can relay messages through remote mail transfer agents or store them locally using either the mbox or maildir format. This implementation supports SMTP as defined by RFC 5321 as well as several extensions. A running smtpd can be controlled through smtpctl(8).
The options are as follows:
-
-D macro=value -
Define macro to be set to value on the command line. Overrides the definition of macro in the configuration file.
-
-d -
Do not daemonize. If this option is specified,
smtpdwill run in the foreground and log to stderr. -
-F -
Do not daemonize. If this option is specified,
smtpdwill run in the foreground and log to syslogd(8). -
-f file -
Specify an alternative configuration file.
-
-h -
Display version and usage.
-
-n -
Configtest mode. Only check the configuration file for validity.
-
-P system -
Pause a specific subsystem at startup. Normal operation can be resumed using smtpctl(8). This option can be used multiple times. The accepted values are:
- mda
-
Do not schedule local deliveries.
- mta
-
Do not schedule remote transfers.
- smtp
-
Do not listen on SMTP sockets.
-
-T trace -
Enables real-time tracing at startup. Normal operation can be resumed using smtpctl(8). This option can be used multiple times. The accepted values are:
-
imsg
-
io
-
smtp (incoming sessions)
-
filters
-
transfer (outgoing sessions)
-
bounce
-
scheduler
-
expand (aliases/virtual/forward expansion)
-
lookup (user/credentials lookups)
-
stat
-
rules (matched by incoming sessions)
-
mproc
-
all
-
-
-v -
Produce more verbose output.
Files
-
-
/etc/smtpd/smtpd.conf -
Default
smtpdconfiguration file. -
/run/smtpd.sock -
UNIX-domain socket used for communication with smtpctl(8).
-
/var/spool/smtpd/ -
Spool directories for mail during processing.
-
~/.forward -
User email forwarding information.
Releases
10 releases since Debian 2.2 (Potato); the text changed 6 times.
-D since Arch Linux 2026-11-01;
-F since Arch Linux 2026-11-01;
-P since Arch Linux 2026-11-01;
-T since Arch Linux 2026-11-01;
-d since Arch Linux 2026-11-01;
-f since Arch Linux 2026-11-01;
-h since Arch Linux 2026-11-01;
-n since Arch Linux 2026-11-01;
-v since Arch Linux 2026-11-01.
-H until Debian 4.0 (Etch);
-L until Debian 4.0 (Etch);
-c until Debian 4.0 (Etch);
-g until Debian 4.0 (Etch);
-m until Debian 4.0 (Etch);
-s until Debian 4.0 (Etch);
-u until Debian 4.0 (Etch).