since this morning i cannot forwarding mails from my exchange 2016. We dont make any updates or changes, but when i configure a forwarding rule in my exchange server, have i the follow issue.
The Efa 4 Server is my Smarthost.
Remote Server returned '554 5.4.0 <192.168.4.26 #5.4.12 smtp; 554 5.4.12 SMTP; Hop count exceeded - possible mail loop detected on message
Code: Select all
Final-Recipient: rfc822; xxxx@xxx
Original-Recipient: rfc822;xxxx@xxx
Action: failed
Status: 5.4.12
Remote-MTA: dns; 192.168.4.26
Diagnostic-Code: smtp; 554 5.4.12 SMTP; Hop count exceeded - possible mail
loop
detected on message id <c822d840dede4397a09c541c36c13e4f@xxxx>
Normal messages work without errors.
What can i do to find the issue?
Regards
Stefan