Hello,

The 1.4.4 release should of addressed this issue for everyone which does not have advanced dsHeuristics applied.

For the people still experiencing the issue please check if you have any Deny rules on the root of the domain?. if "Exchange Trusted Subsystem" has a deny rule there please remove it.

(We are working to automate the pernament fix for people with advanced dsheuristics aswell, which will be released as a seperated patch, meanwhile this manual change should work).

Regards,

Marco