exchange server se

The exchange server se tag covers content about Exchange Server Subscription Edition, Microsoft's on-premises email server for organizations that need hybrid coexistence with Exchange Online. Recent discussions focus on the May 2026 hotfix update, which moves hybrid rich coexistence traffic from Exchange Web Services to Microsoft Graph API calls. This update is optional but signals a shift away from the old hybrid model. Topics include deployment planning, hybrid configuration, and the timeline for transitioning to cloud-based services. The tag is relevant for IT administrators managing Exchange Server SE in hybrid environments.