.\"	$OpenBSD: mailer.conf.5,v 1.10 2009/02/07 16:58:23 martynas Exp $
.\"	$NetBSD: mailer.conf.5,v 1.1 1999/03/25 16:40:17 is Exp $
.\"
.\" Copyright (c) 1998
.\" 	Perry E. Metzger.  All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\"    must display the following acknowledgment:
.\"	This product includes software developed for the NetBSD Project
.\"	by Perry E. Metzger.
.\" 4. The name of the author may not be used to endorse or promote products
.\"    derived from this software without specific prior written permission.
.\"
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\"
.Dd $Mdocdate: February 7 2009 $
.Dt MAILER.CONF 5
.Os
.Sh NAME
.Nm mailer.conf
.Nd configuration file for
.Xr mailwrapper 8
.Sh DESCRIPTION
The file
.Pa /etc/mailer.conf
contains a series of pairs.
The first member of each pair is the name of a program invoking
.Xr mailwrapper 8
which is typically a symbolic link to
.Pa /usr/sbin/sendmail .
(On a typical system,
.Xr newaliases 8
and
.Xr 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
.Ql #
character in the first column of any line.
.Sh FILES
.Bl -tag -width /etc/mailer.conf -compact
.It Pa /etc/mailer.conf
.El
.Sh EXAMPLES
The following is an example of how to set up
.Nm
for traditional
.Xr sendmail 8
invocation behavior.
.Bd -literal
# 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
newaliases	/usr/libexec/sendmail/sendmail
hoststat	/usr/libexec/sendmail/sendmail
purgestat	/usr/libexec/sendmail/sendmail
.Ed
.Pp
This example shows how to invoke the
.Sy postfix
MTA suite in place of
.Xr sendmail 8 .
.Bd -literal
# Emulate sendmail using postfix
sendmail	/usr/local/sbin/sendmail
send-mail	/usr/local/sbin/sendmail
mailq		/usr/local/sbin/sendmail
newaliases	/usr/local/sbin/sendmail
.Ed
.Sh SEE ALSO
.Xr mail 1 ,
.Xr mailq 8 ,
.Xr mailwrapper 8 ,
.Xr newaliases 8 ,
.Xr sendmail 8
.Sh AUTHORS
.An Perry E. Metzger Aq perry@piermont.com
.Sh BUGS
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
.Xr mailq 8
should go away.