My Support employee has changed settings for a customer with Exchange ECP. after he has saved the changes the UPN of the customer is lost and changed to the default internal (AD) domain name.

Is their a way to fix this behavior of exchange without adding the domain to AD’s Domain and Trust?

i personally don’t mind because i use powershell, but from the support / service desk site looking i can see some issues in this.

additional: with this problem also the user cant login to RDS, Reason: the specified user account does not exist.

Kind Regards,


Answered question