Hello Exchange Experts,
I have one user whose mailbox was created about a week ago that is not showing up in the global address list in Outlook. Here is what I have done to troubleshoot the issue:
1. Made sure that the mailbox was not configured to be hidden from the Exchange global address list.
2. Verified I could see the user in the GAL when I was in Outlook Web Access. I can see the user in the GAL while I'm in OWA, so this made me think that the issue may be with the offline address book.
3. I updated the offline address book with the following PowerShell command:
update-offlineaddress book - id DefaultOAB
Note: DefaultOAB is not the real name of the offline address book. It has been changed for privacy purposes.
4. Waited until after the next Exchange maintenance to see if the OAB updated. It did not.
Any ideas on what I'm missing or have done wrong?