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 …
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 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) …
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.
Microsoft 365 Blog
Apr 3, 2025 · To support ongoing maintenance and updates for Microsoft’s on-premises server products, prices for all standalone on-premises server products (SharePoint Server, Exchange …
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 …
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).
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 …
Introducing more control over Direct Send in Exchange Online
Apr 28, 2025 · Read about a new feature that gives you more control over Direct Send in Exchange Online.
Exchange Online to retire Basic auth for Client Submission (SMTP …
Apr 15, 2024 · Today, we are announcing that Exchange Online will permanently remove support for Basic authentication with Client Submission (SMTP AUTH) starting March 2026.