Global address not updating under outlook cached mode
Browse to C:\Program Files\Microsoft\Exchange Server\V14\Client Access\OA Services 8.2 Locate the Microsoft Exchange File Distribution service 8.3 Now Right Click on the service and select Restart 9. And finally click the Download Address Book to download latest copy IF OUTLOOK STILL DON'T HAVE THE UPDATED LIST, TRY THE FOLLOWING Try deleting the user's oab files then have the user re-download the Address Book. Experts Exchange article authors are available to answer questions and further the discussion.Now go back to C:\Program Files\Microsoft\Exchange Server\V14\Client Access\OA 10. This means that your Offline Address Book has now been updated, next we will update the clients Address Book and confirm that they have the latest one. The problem was the oab files got corrupt and would not catch new updates.If it continues to happen, try excluding these oab files from your anti-virus scanner.If the update mechanism appears to be broken for you, it could be because of a corruption in your OAB or in your mail profile.
You can disable the option “Download changes since last Send/Receive” to make sure you get a complete fresh copy of the OAB but this could take longer to download.
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.
In Outlook 2010 and previous, it is recommended to leave the option “Full Details” enabled.
In Outlook 2013 and Outlook 2016, you’ll find that this option is no longer available as full details are also used to build the Contact Card.
To additionally complicate things, the OAB on the server is by default generated once per day, at midnight.