Reported error: 554 5.4.14 Hop count exceeded - possible mail loop ATTR34 [BN1NAM02FT041.eop-nam02.prod.protection.outlook.com] DSN generated by: CH2PR18MB3414.namprd18.prod.outlook.com
I send an email from the same environment (my Zimbra server) to a forwarding account in that environment through the same gateway (Proxmox Mail Gateway) to the same platform (365). One set succeeds, while the other gives me the above error. I've verified that the settings on the two forwarding accounts are the same. The differences are that the failures are from a PBX to a customer domain whereas the testing is from a mail client to our domain. What gives? One has 11 message hops to delivery, the other has 16 hops to failure. Any ideas? ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP
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