On Mon, Jul 8, 2013 at 11:04 PM, Peter wrote: > No, the service you're looking for is "submission", not "smtps". SMTPS is a > deprecated means of submission and you only need it if your users are using > a very old version of one particular email client in which case they likely > have other problems. > Thank you Peter. Interestingly, even after enabling submission (perhaps incorrectly, I'm looking into that) I still get this in the logs when I try to send mail via postfix: 11993 Jul 9 05:02:11 awsBeta postfix/smtpd[6734]: warning: hostname bzq-219-241-14.static.bezeqint.net does not resolve to address 212.179.241.14: Name or service not known 11994 Jul 9 05:02:11 awsBeta postfix/smtpd[6734]: connect from unknown[212.179.241.14] 11995 Jul 9 05:02:12 awsBeta postfix/smtpd[6734]: NOQUEUE: reject: RCPT from unknown[212.179.241.14]: 554 5.7.1 : Relay access denied; from= to= proto=ESMTP helo=<[10.0.0.154]> 11996 Jul 9 05:02:14 awsBeta postfix/smtpd[6734]: disconnect from unknown[212.179.241.14] 212.179.241.14 is the address where my desktop is located, and bzq-* obviously by the name refers to my ISP (Bezeq). It seems that even with submission enabled, Postfix wants the IP address whitelisted in "mydomains". I don't even see in the logs that Postfix bothered checking the submission credentials, it rejected bases on IP address before even getting that far. What else must be configured to remove the IP address whitelist and go right to the submission credentials check? Thank you for helping me learn! I've gone over these tutorials but I'm rather stuck: http://www.postfix.org/VIRTUAL_README.html http://wiki2.dovecot.org/HowTo/PostfixAndDovecotSASL https://help.ubuntu.com/community/Postfix -- Dotan Cohen http://gibberish.co.il http://what-is-what.com