When I send a test message from my mail server to my @bellsouth.net email, The postfix log shows it was sent OK, but the message never arrives in my bellsouth inbox. Shouldn't I get a failure notice or a bounce if At&T is blocking the messages?
I'm trying to troubleshoot why some customers aren't getting emails, but if there's nothing in mail.log to say the message is rejected, how do I know which messages were delivered successfully?
The log shows:
Feb 27 09:02:36 MyHOSTNAME postfix/pickup: D53A72713E5: uid=0 from=<root> Feb 27 09:02:36 MyHOSTNAME postfix/cleanup: D53A72713E5: message-id=<20120227140236.D53A72713E5@mydomain.com> Feb 27 09:02:36 MyHOSTNAME postfix/qmgr: D53A72713E5: from=<email@example.com>, size=878, nrcpt=1 (queue active) Feb 27 09:02:37 MyHOSTNAME postfix/smtp: D53A72713E5: to=<firstname.lastname@example.org>, relay=gateway-f1.isp.att.net[188.8.131.52]:25, delay=0.57, delays=0.11/0.03/0.23/0.19, dsn=2.0.0, status=sent (250 ok ; id=20120227140036M0700qer4ne) Feb 27 09:02:37 MyHOSTNAME postfix/qmgr: D53A72713E5: removed
The AT&T server accepted the message, right?
I happen to have an At&T/Bellsouth email, but I don't have an account with every ISP we send to. I need some way of knowing if a message is getting to its destination or not. Is there any setting in my main.cf file that would affect whether or not we get reject/bounce notices?