Exchange global address book not updating
I'm having an issue with Exchange 2010 and Outlook 2010. This problem started after we flattened our domain. We migrated all the users from the the sub to the top using the ADMT and then we took down sub. To be sure, does OWA (which uses live information) reflect the GAL correctly? The first thing you should do is on a test workstation, is delete the *files.
Essentially, the issue is the GAL is not updating in Outlook. I looked at the recipient filter of the GAL, it's below for reference: (Alias -ne $null -and (Object Class -eq 'user' -or Object Class -eq 'contact' –or Object Class -eq 'ms Exch System Mailbox' -or Object Class –eq 'ms Exch Dynamic Distribution List' -or Object Class -eq 'group' -or Object Class –eq 'public Folder')) The next thing I'm going to try is creating a new GAL and making it the default, if necessary. That will force Outlook to download a complete GAL. If so, it is probably that the incremental update files haven't updated correctly.
When changes occur within the main Global Address Book (GAL) on the Office 365, computers running Outlook 20/2016 may not automatically receive the updates.
If this is happening, then you may notice missing, non-existent and/or incorrect entries.
The default configuration for Exchange 2010 has the Address Book will update every 24 hours at 5am.
During this process all new email addresses are added to the Global Address List ready for when the clients next connect and refresh their copy of the address book.
Please visit the document on How to turn on or off Cached Exchange Mode for (Outlook 2010, and Outlook 20).
It had all of the up-to-date information until I did a manual send/receive of the address book.In general, Outlook will automatically update the Offline Address Book (OAB) for Exchange accounts once every 24 hours.When it didn’t or when you want to make sure you do have the latest OAB available, you could manually trigger an update from within Outlook as well.This morning I was asked to update the Global Address List and Offline Address Book in an Exchange environment.You could wait for Exchange to do it automatically (the default schedule is once a day) but what when you want to force the update to take place right now?