Exchange global address not updating
In Exchange Server 2013, these files are located in the %Exchange Install%\Logging\OABDownload directory.
Open up the latest log file in the directory and see what errors are being reported by the client.
We should also check to make sure we can update the OAB using Power Shell.
I might have a problem with my Offline Address Book in Outlook.
For me, new colleagues are not showing up and the contact pictures aren’t displaying either.
So, first, check to see where the mailbox is: Which gives us this result: Then we can check and the database is mounted: Next we can try to update the files for the OAB.
Check the OAB file location to confirm the dates on the files: The we can run this command (assuming you have one OAB): In the case of my client, the files never changed.