On Thu, Apr 07, 2011 at 12:31:55PM +0100, Bernhard Rohrer wrote: > I assume you are talking about the submission port? > > simply create a second one (I used 588) and limit it to the internal IP range > and don't require TLS and auth.
No need. master.cf: submission inet n - n - - smtpd -o smtpd_tls_security_level=may -o smtpd_sasl_auth_enable=yes -o smtpd_tls_auth_only=yes -o smtpd_client_restrictions=$submission_client_restrictions -o milter_macro_daemon_name=ORIGINATING main.cf: submission_client_restrictions = permit_mynetworks, reject_plaintext_session, permit_sasl_authenticated -- Viktor.