SMTPD(8) OpenBSD System Manager's Manual SMTPD(8)NAMEsmtpd - Simple Mail Transfer Protocol daemon
SYNOPSISsmtpd [-dnv] [-D macro=value] [-f file]
DESCRIPTIONsmtpd 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, smtpd will run in
the foreground and log to stderr.
-f file
Specify an alternative configuration file.
-n Configtest mode. Only check the configuration file for validity.
-v Produce more verbose output.
smtpd is not enabled by default. In order to use it as the system
mailer, ensure the mail queue is empty, then stop sendmail(8):
# pkill sendmail
Modify the current mailwrapper(8) settings by editing /etc/mailer.conf:
sendmail /usr/sbin/smtpctl
send-mail /usr/sbin/smtpctl
mailq /usr/sbin/smtpctl
makemap /usr/libexec/smtpd/makemap
newaliases /usr/libexec/smtpd/makemap
Rebuild the aliases database, and enable the daemon:
# newaliases
# echo "sendmail_flags=NO" >> /etc/rc.conf.local
# echo "smtpd_flags=" >> /etc/rc.conf.local
# smtpdFILES
/etc/mail/smtpd.conf Default smtpd configuration file.
/var/run/smtpd.sock UNIX-domain socket used for communication with
smtpctl(8).
SEE ALSOsmtpd.conf(5), mailwrapper(8), smtpctl(8)
Simple Mail Transfer Protocol, RFC 5321, October 2008.
HISTORY
The smtpd program first appeared in OpenBSD 4.6.
OpenBSD 4.9 May 24, 2010 OpenBSD 4.9
