microsoft entra cloud sync

Microsoft Entra Cloud Sync is a topic on WindowsForum.com centered on hybrid identity synchronization between on-premises Active Directory and Microsoft Entra ID (formerly Azure AD). Recent discussions highlight the general availability of Exchange attribute writeback for cloud-managed remote mailboxes, a feature that enables hybrid Exchange organizations to edit recipient attributes in Exchange Online and sync changes back to on-premises AD. This capability supports retiring on-premises Exchange Server while maintaining compatibility with line-of-business applications that rely on AD mailbox data. The feature is available across Commercial, GCC High, DoD, and 21Vianet environments, with a supported limit of 600,000 cloud-managed mailboxes per tenant. The tag covers practical deployment considerations for IT administrators managing hybrid identity and mail environments.