Overview
Synchronize your Global Address List (GAL) as mailbox contacts in the same environment with the help of contactSync.
Mail-enabled On-premise Active Directory objects can be synced to Exchange mailboxes in the same forest, and mail-enabled Office365 objects can be synced to Exchange Online mailboxes in the same Office365 tenant.
contactSync supports Exchange 2019, 2016, 2013, 2010 and Exchange Online.