Exchange Server Subscription Edition (SE) is now available
Jul 1, 2025 · We are excited to announce the general availability of Exchange Server Subscription Edition (SE). This release continues Microsoft’s long tradition of enabling customers to provide …
Released: August 2025 Exchange Server Security Updates
Aug 12, 2025 · Yes, all Exchange updates are cumulative in nature. Therefore, August 2025 SUs contain the ability for Exchange Server on-premises to support the use of dedicated Exchange …
Why “in-place upgrade” from Exchange 2019 to Exchange SE is …
May 1, 2025 · Even if you want to upgrade your Exchange 2019 hardware for Exchange SE, you can in-place upgrade to Exchange SE first on old hardware and then, once you are on the new …
Released: 2025 H1 Cumulative Update for Exchange Server
Feb 10, 2025 · Today we are announcing the availability of the 2025 H1 Cumulative Update (CU) for Exchange Server 2019 (aka CU15).
T-6 months: Exchange Server 2016 and Exchange Server 2019 End …
On October 14, 2025, 6 months from today, Exchange Server 2016 and Exchange Server 2019 reach end of support.
MDVM Guidance for CVE-2025-53786: Exchange Hybrid Privilege …
CVE-2025-53786 is an Elevation of Privilege (EoP) flaw in hybrid Microsoft Exchange Server deployments. Attackers with administrative rights on an on-premises Exchange Server can …
Exchange Server Security Changes for Hybrid Deployments
Apr 18, 2025 · To maintain Exchange hybrid features, Exchange Server will (later this year) start supporting Microsoft Graph API as a replacement for EWS calls from Exchange Server to …
Released: October 2025 Exchange Server Security Updates
Oct 14, 2025 · We have released Security Updates for Exchange Server SE, Exchange Server 2019 and Exchange Server 2016.
Exchange Team Blog | Microsoft Community Hub
Exchange Online ActiveSync Device Support Update We want to inform our users and organizations about an important upcoming change regarding Exchange ActiveSync (EAS) …
Introducing Exchange Online Tenant Outbound Email Limits
Feb 24, 2025 · We’re introducing new tenant-level outbound email limits (also known as the Tenant External Recipient Rate Limit or TERRL).