Exchange Addressbook
Exchange AddressBook
OfflineAddressBook
Get-OfflineAddressBook
Update-OfflineAddressBook "Default Offline Address Book"
Global AddressList
Get-GlobalAddressList
Update-GlobalAddressList "Default Global Address List"
PowerShell to the rescue:
Get-GlobalAddressList | Update-GlobalAddressList
So now that the GAL is updated there could be some users that are using a Offline Address Book (OAB).
So, what is the PowerShell command to update this?
Get-OfflineAddressBook | Update-OfflineAddressBook
And last… when you update the OAB you’ll also need to update let the Client Access Server know that there is an updated OAB.
Also this you can accomplish through PowerShell:
Get-ClientAccessServer | Update-FileDistributionService