If you're having issues with your Outlook address book, such as a new employee's information not showing up, there may be a simple solution.This article shows how to manually update the Global Address List (GAL) in Outlook (version 2010 and above).The database can freely move to other mailbox servers if part of a DAG and the OAB files will be generated immediately for clients to download.In essence, this mailbox server becomes the OAB Generation server in Exchange 2013.
But now you want to change its update frequency, any ideas?
If you have the Social Connector enabled and the GAL version of the Contact is updated, the Outlook contact will be updated as well.
In older versions of Outlook the Exchange x.400 address is used and you'll need to use the methods below to export the SMTP addresses.
When clients download the updated OAB, the new users will show up.
Knowing why the delay occurs means you won’t spend time troubleshooting it.