Synchronize your Global Address List (GAL) as mailbox contacts in the same environment with the help of contactSync.

Mail-enabled on-premises 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.

Furthermore contactSync synchronizes contacts of a modern Public Folder into user mailboxes, that are in the same Exchange environment.

contactSync supports Exchange 2019, 2016, 2013, 2010 and Exchange Online.