On 9/5/2017 2:48 PM, techlist06 wrote: > Postfix 3.2.2, Centos7. All functioning as configured. I have a few local > accounts, several virtual addresses delivered to those accounts, and some > domains relayed, the latter do not submit mail through this box. > > All local accounts send via TLS authentication on 587. Currently I don't > think I have any restrictions on what an outbound address can be. I do have > some aliases so I do not want to restrict to logon names only. > > Is it possible to restrict outgoing mail to be from one of my "valid" local > or virtual aliases? And I want to restrict outbound from one address in > particular. > > I looked here: > http://www.postfix.org/RESTRICTION_CLASS_README.html > but if the answer is there I'd be grateful for some more help, I didn't get > it. On or off-list. > > Right now my submission section of master.cf I sbelow. I tried adding > something here as -o o smtpd_sender_restrictions but didn't get that right. > > submission inet n - n - - smtpd > ## subsequent indented lines override main.cf settings. > -o content_filter= > -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject > -o smtpd_sasl_type=dovecot > -o smtpd_sasl_path=private/auth > -o smtpd_sasl_security_options=noanonymous > -o smtpd_tls_security_level=encrypt > -o smtpd_sasl_auth_enable=yes > -o syslog_name=postfix-submission > -o milter_macro_daemon_name=ORIGINATING > > Happy to provide all the configs if needed. > > >
The easiest way would be to add -o smtpd_sender_restrictions=reject_unlisted_sender http://www.postfix.org/postconf.5.html#reject_unlisted_sender -- Noel Jones
