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NEWALIASES(8) System Manager's Manual NEWALIASES(8)

newaliases
rebuild mail aliases

newaliases [
-f file
]

The newaliases utility makes changes to the mail aliases file visible to smtpd(8). It should be run every time the aliases(5) file is changed. The location of the alias file is defined in smtpd.conf(5), and defaults to /etc/mail/aliases.
The options are as follows:
 
 
file
Use file as the configuration file, instead of the default /etc/mail/smtpd.conf.
If using database (db) files, newaliases is equivalent to running makemap(8) as follows:
# makemap -t aliases /etc/mail/aliases
If using plain text files, newaliases is equivalent to running smtpctl(8) as follows:
# smtpctl update table aliases

/etc/mail/aliases
List of local user mail aliases.
/etc/mail/virtual
List of virtual host aliases.

The newaliases utility exits 0 on success, and >0 if an error occurs.

smtpd.conf(5), makemap(8), smtpctl(8), smtpd(8)

The newaliases command first appeared in OpenBSD 4.6 as a replacement for the equivalent command shipped with sendmail.
July 20, 2018 OpenBSD-current