Account template for Active Directory does not save Exchange configuration.
We defined an endpoint for the Exchange and then created an account template for mailbox creation on the Exchange servers.
The parameters entered in the Exchange tabs are not being saved.
Identity Manager 14.5 GA
Configure Exchange Endpoints was not followed.
Overall C++ connector was unable to connect to Exchange server over winRM due to Firewall.
Please follow the Configure Exchange Endpoints to make sure connection can be done.
You can find a bit more troubleshooting information in this KB.