Forum Discussion
Exchange 2016 NDRs, backscatter and informing users what is happening.
Hi, We noted an issue the other day that was not obvious to diagnose. An external user sent a large email that broke policy thresholds for email size. Our server issued an NDR, but we relay our o...
Try a transport rule where messages with "Undeliverable" in the subject are copied or redirected to an admin email address. There are possibly more options you can filter for in the rule to make sure you only get NDR's redirected.