Global address list 2016 not updating
I migrated from Exchange 2010 to 2016 a few months ago and the issue was just recently discovered when I added a new user to Exchange the other day.
You have set up Outlook Photos and added photos as you require, however the photos are not appearing in Microsoft Outlook 2010.
The Global Address List (GAL) has not updated from Active Directory.
You can see the list of attributes that will be put into the GAL using When Outlook users are running in cached mode, they rely on the Offline Address Book (OAB) to provide them with access to one or more addresses (that are always available when they are connected directly to Exchange) The OAB is rebuilt and downloaded on a default schedule as shown below.
Because of this, a new user may not be visible in the address book, or changes to a user’s name, address, etc.
All other users seem to have the same issues when downloading the Global address book.