/etc/mailer.conf
mailer.conf5
Configuration file for mailwrapper(8)
Overview
The file /etc/mailer.conf contains a series of pairs. The first member of each pair is the name of a program invoking mailwrapper(8) which is typically a symbolic link to /usr/sbin/sendmail. (On a typical system, newaliases(8) and mailq(8) would be set up this way.) The second member of each pair is the name of the program to actually execute when the first name is invoked. The file may also contain comments, denoted by a ‘#’ character in the first column of any line.
Files
Examples
The following is an example of how to set up mailer.conf for the default smtpd(8) MTA suite:
# Emulate sendmail using smtpd sendmail /usr/sbin/smtpctl send-mail /usr/sbin/smtpctl mailq /usr/sbin/smtpctl makemap /usr/sbin/smtpctl newaliases /usr/sbin/smtpctl
This example shows how to invoke the traditional sendmail(8) MTA suite in place of smtpd(8):
# Execute the "real" sendmail program sendmail /usr/local/libexec/sendmail/sendmail send-mail /usr/local/libexec/sendmail/sendmail mailq /usr/local/libexec/sendmail/sendmail makemap /usr/local/libexec/sendmail/makemap newaliases /usr/local/libexec/sendmail/sendmail hoststat /usr/local/libexec/sendmail/sendmail purgestat /usr/local/libexec/sendmail/sendmail
Releases
56 releases since OpenBSD 2.6; the text changed 13 times.