Today we are re-releasing the November 2024 SUs for Exchange Server.

We are pleased to provide an update regarding Exchange Server ADFS Modern Authentication support.

Please read about important updates about recent changes and upcoming deprecations in Exchange Online.

We wanted to share an update on the ApplicationImpersonation RBAC Role Deprecation in Exchange Online.

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

We are announcing a feature that allows admins to add protection against accidental delicensing of Exchange Online mailboxes.

Microsoft has recently introduced several key updates to IPv6 traffic for Exchange Online.

Today, we are announcing updates to theConnect-ExchangeOnlinecmdlet used to connect to Exchange Online.

Today, we are excited to announce the General Availability of Inbound SMTP DANE with DNSSEC!

On October 14, 2025, Exchange Server 2016 and Exchange Server 2019 reach end of support