In the "Postfix SASL Howto", it says: In order to allow mail relaying by authenticated remote SMTP clients:
/etc/postfix/main.cf: smtpd_recipient_restrictions = ... ... This is how I configured my submission port in the past. In building my new server, I see that the submission definition in master.cf uses smtpd_CLIENT_restrictions (cps mine, for emphasis) instead. I am confused about which I should use and why. Can someone enlighten me, please? Thanks! -- -ste