Updated: 2022/Sep/29

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MAILER.CONF(5)                File Formats Manual               MAILER.CONF(5)

NAME
     mailer.conf - configuration file for mailwrapper(8)

DESCRIPTION
     The file /etc/mailer.conf contains a series of lines of the form

     name program [arguments ...]

     The first word of each line is the name of a program invoking
     mailwrapper(8).  (For example, on a typical system /usr/sbin/sendmail
     would be a symbolic link to mailwrapper(8), as would newaliases(1) and
     mailq(1).  Thus, name might be "sendmail" or "newaliases" etc.)

     The second word of each line is the name of the program to actually
     execute when the first name is invoked.

     The further arguments, if any, are passed to the program, followed by the
     arguments mailwrapper(8) was called with.

     The file may also contain comment lines, denoted by a `#' mark in the
     first column of any line.

     The default mailer is postfix(1), which will also start by default
     (unless specifically disabled via an rc.conf(5) setting) so that locally
     generated mail can be delivered, if the "sendmail" setting in
     /etc/mailer.conf is set to "/usr/libexec/postfix/sendmail".

FILES
     /etc/mailer.conf

EXAMPLES
     This example shows how to set up mailer.conf to invoke the postfix(1)
     program:

           sendmail        /usr/libexec/postfix/sendmail
           mailq           /usr/libexec/postfix/sendmail
           newaliases      /usr/libexec/postfix/sendmail

     This example shows the use of the mini-sendmail package from pkgsrc in
     place of postfix(1):

           # Send outgoing mail to a smart relay using mini-sendmail
           sendmail        /usr/pkg/sbin/mini-sendmail -srelayhost
           send-mail       /usr/pkg/sbin/mini-sendmail -srelayhost

     Note the use of additional arguments.

SEE ALSO
     mail(1), mailq(1), newaliases(1), postfix(1), mailwrapper(8)

     pkgsrc/mail/sendmail, pkgsrc/mail/mini_sendmail

HISTORY
     mailer.conf appeared in NetBSD 1.4.

AUTHORS
     Perry E. Metzger <perry@piermont.com>

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
     mailq(1) should go away.

NetBSD 10.99                    April 10, 2010                    NetBSD 10.99