I'm having issues relaying for only one domain, that happens to be local to the network the zimbra server is on, Sadly the postfix logs are completely useless as to why, the massive time I've spent googling only tell me it "could" be a dns lookup error, but all lookups succeed just fine. But, for completeness, here are my logs.
Feb 16 15:33:45 gamma postfix/smtpd: 297B345DBA: client=localhost[127.0.0.1]
Feb 16 15:33:45 gamma postfix/cleanup: 297B345DBA: message-id=<763308428.51.1266359620242.JavaMail.root@gamma .removed.tld>
Feb 16 15:33:45 gamma postfix/qmgr: 297B345DBA: from=<removed@removed>, size=1168, nrcpt=1 (queue active)
Feb 16 15:33:45 gamma postfix/error: 297B345DBA: to=<firstname.lastname@example.org>, relay=none, delay=0.19, delays=0.17/0.01/0/0.01, dsn=5.0.0, status=bounced (somethingwronghere.bad)
Feb 16 15:33:45 gamma postfix/bounce: 297B345DBA: sender non-delivery notification: 576CF45DBC
Feb 16 15:33:45 gamma postfix/qmgr: 297B345DBA: removed
I've obfuscated real server names, and made the domain taht is failing become:
So what does this error mean? nothing to me. I've been a sendmail admin for a while, and do email support for a living. I can't for the life of me figure out why a
and dig NS PTR CNAME etc for that domain all work perfectly on the command line even as user zimbra or postfix, but the same error comes up every single time...
Why does it route to outside domains like say, hotmail, gmail, etc just fine, but this one a no go?