I manage several PBX systems and some of them the email works fine and some don’t/ After quite a bit of comparing settings and troubleshooting, I am unable to come up with a definite answer.
Does anyone have a solid solution using internal or external server for email with FreePBX?
Are you using SysAdmin Pro? The Debug should tell you what’s wrong. There’s also a 30-day free trial if you haven’t yet tried it.
Yes all of my systems are running Admin Pro. And I look at the debug output and someeimtes it will give you good info and sometimes not.
Below is an example form a PBX set the same as others and according to this output the message should have been sent but it never arrives.
2026-08-08T14:53:20.727254-04:00 pbx3 postfix/pickup[653902]: B1760C80854: uid=999 from=<asterisk>
2026-08-08T14:53:20.731996-04:00 pbx3 postfix/cleanup[659107]: B1760C80854: message-id=<[email protected]>
2026-08-08T14:53:20.754264-04:00 pbx3 postfix/qmgr[653903]: B1760C80854: from=<[email protected]>, size=436, nrcpt=1 (queue active)
2026-08-08T14:53:20.849992-04:00 pbx3 postfix/smtp[659109]: connect to datacare-co.mail.protection.outlook.com[2a01:111:f403:c931::1]:25: Network is unreachable
2026-08-08T14:53:21.605275-04:00 pbx3 postfix/smtp[659109]: B1760C80854: to=<[email protected]>, relay=datacare-co.mail.protection.outlook.com[52.101.10.16]:25, delay=0.91, delays=0.06/0.01/0.2/0.64, dsn=2.6.0, status=sent (250 2.6.0 <[email protected]> [InternalId=45513768449913, Hostname=IA3PR03MB7642.namprd03.prod.outlook.com] 9590 bytes in 0.133, 70.045 KB/sec Queued mail for delivery)
2026-08-08T14:53:21.606003-04:00 pbx3 postfix/qmgr[653903]: B1760C80854: removed