I have a brand new installation, from source, of Postfix 3.0.2 on Debian 7, 64-bit. I successfully did the initial local tests for postfix as described in "The Book of Postfix." (Note that I have virtual servers but have not yet configured postfix for handling them.) Then I made my first test for outbound mail to my personal gmail address and the mail.info file shows this:
Sep 18 01:57:18 dedi2 postfix/smtpd[3154]: connect from mail-am1hn0254.outbound.protection.outlook.com[157.56.112.254] Sep 18 01:57:19 dedi2 postfix/smtpd[3154]: NOQUEUE: reject: RCPT from mail-am1hn0254.outbound.protection.outlook.com[157.56.112.254]: 454 4.7.1 <jc.ch...@mygnus.com>: Relay access denied; from=<murray.he...@tcd.ie> to=<jc.ch...@mygnus.com> proto=ESMTP helo=<emea01-am1-obe.outbound.protection.outlook.com> Sep 18 01:57:19 dedi2 postfix/smtpd[3154]: NOQUEUE: reject: RCPT from mail-am1hn0254.outbound.protection.outlook.com[157.56.112.254]: 454 4.7.1 <jk.ch...@mygnus.com>: Relay access denied; from=<murray.he...@tcd.ie> to=<jk.ch...@mygnus.com> proto=ESMTP helo=<emea01-am1-obe.outbound.protection.outlook.com> Sep 18 01:57:19 dedi2 postfix/smtpd[3154]: disconnect from mail-am1hn0254.outbound.protection.outlook.com[157.56.112.254] ehlo=1 mail=1 rcpt=0/2 quit=1 commands=3/5 And I have received no mail at my gmail address. Looking at the messages above I note that the address <jk.ch...@mygnus.com> is at one of my virtual hosts but I have no user by that name (and the IP address 157.56.112.254 is not known to me. I have set up my DNS records according to advice from this mailing list. I will read more in the book tonight but hope someone can point me in the right direction while I continue to study the problem. Thanks. Best regards, -Tom