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Delivery Status Notification (Failure)

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  • Last reply by Matt

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I am receiving this error message and have checked all the settings and have found nothing wrong with them.

Has anyone received this error and/or know how to fix it? Thanks.

Action: failed Status: 5.0.0 (permanent failure) Remote-MTA: dns; [104.47.65.110] Diagnostic-Code: smtp; 5.3.0 - Other mail system problem 554-'5.4.14 Hop count exceeded - possible mail loop ATTR34 [DM3GCC02FT017.eop-gcc02.prod.protection.outlook.com]' (delivery attempts: 0)

I am receiving this error message and have checked all the settings and have found nothing wrong with them. Has anyone received this error and/or know how to fix it? Thanks. Action: failed Status: 5.0.0 (permanent failure) Remote-MTA: dns; [104.47.65.110] Diagnostic-Code: smtp; 5.3.0 - Other mail system problem 554-'5.4.14 Hop count exceeded - possible mail loop ATTR34 [DM3GCC02FT017.eop-gcc02.prod.protection.outlook.com]' (delivery attempts: 0)

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The first Thing I need to ask is did you actually send the messages? These MTA failure messages often come back to genuine email accounts when the address has been used by spammers. In that scenario it is called backscatter. https://en.wikipedia.org/wiki/Backscatter_(email)

If it is genuine mail you are sending, there is a very high probability that misconfiguration of the network, probably on the recipient end is the problem. Perhaps misconfigured port forwarding on a firewall. But without knowing exactly where you are sending to. It is difficult to be at all precise.