We are not releasing any Exchange Server Security Updates for November 2025

We wanted to learn if there is interest to bring Copilot functionality to on-premises email.

Office Online Server retirement date has been Announced.

We are happy to announce General Availability of cloud-managed Remote Mailboxes.

We have released Security Updates for Exchange Server SE, Exchange Server 2019 and Exchange Server 2016.

Support for Exchange Server 2016 and Exchange Server 2019 ends today.

We wanted to let you know about Exchange Online ActiveSync Certificate-based Authentication endpoint changes.

We wanted to let you know of an Active Directory replication issue you might run into if you use Windows Server 2025 schema master role.

We are happy to announce the time-based archiving feature for Exchange Online users with archives.

We will make a change to management of "Contact" Recipient Type objects in Exchange Online.