configuration file for
The file /etc/mailer.conf contains a
series of pairs. The first member of each pair is the name of a program
mailwrapper(8) which is typically a symbolic link to
/usr/sbin/sendmail. (On a typical system,
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
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, named /usr/libexec/sendmail/sendmail sendmail /usr/libexec/sendmail/sendmail send-mail /usr/libexec/sendmail/sendmail mailq /usr/libexec/sendmail/sendmail makemap /usr/libexec/sendmail/makemap newaliases /usr/libexec/sendmail/sendmail hoststat /usr/libexec/sendmail/sendmail purgestat /usr/libexec/sendmail/sendmail
mail(1), mailq(8), mailwrapper(8), newaliases(8), smtpd(8)
Perry E. Metzger <email@example.com>
The entire reason this program exists is a crock. Instead, a command for how to submit mail should be standardized, and all the "behave differently if invoked with a different name" behavior of things like mailq(8) should go away.