Viktor Dukhovni:
> On Fri, Jul 05, 2013 at 03:46:46PM -0400, Wietse Venema wrote:
>
> > To clone the submission service and set "smtpd_tls_auth_only=no"
> > for connections to 127.0.0.1:
> >
> > /etc/postfix/master.cf
> > 127.0.0.1:submission ...same stuff as ordinary submission service...
> > ... same stuff as ordinary submission service...
> > -o smtpd_tls_auth_only=no
>
> One may then need to make the default submission entry also specify a
> specific IP address, as listeners on 0.0.0.0:port exclude listeners on
> specific addresses on most systems.
That is not needed. The more specific binding to 127.0.0.1 takes
precedence over the unspecific binding to 0.0.0.0.
Wietse