I’ll make this post really short. The other day I needed to enable some new users within a domain that has trusts, users in one domain with some services in the trusted domain. This service in question is Exchange, and thus these were linked mailboxes.
First Symptom:
Opening Outlook for the first time and letting auto configure wizard run wouldn’t auto populate the User name and email in the second window of the wizard.
At this point I simply worked around the issue by filling in the name and email address, leaving the password field blank and clicking next, the rest of auto configure worked without a hitch.
Second Symptom:
Lync/Skype control panel, enable user; Email address is invalid.
At this point I sort of had an ‘ah ha’ moment and decided to check the user’s object in AD (on the source domain with the active accounts, not the disabled accounts in the exchange domain) and sure enough their email fields were blank, normally this would be populated if exchange was on the same domain, but since they were linked mailboxes with disabled accounts within the trusted domain, this is something Exchange I guess just doesn’t do in this situation.
Solution: Populated the email field on the User’s AD object on the source domain.
This sure enough resolved the first symptom as well 😀