We wanted to announce several security changes that Exchange hybrid customers need to know about.

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

Announcing retirement of OWA access to online archives for on-premises mailboxes.

On October 14, 2025, 6 months from today, Exchange Server 2016 and Exchange Server 2019 reach end of support.

More licensing and pricing information for Exchange SE is now available.

We wanted to share an update related to our long-term EWS deprecation in Exchange Online.

We’re introducing new tenant-level outbound email limits (also known as the Tenant External Recipient Rate Limit or TERRL).

We are announcing a change in behavior of the EWSEnabled tenant-wide switch in Exchange Online.

Today we are announcing the availability of the 2025 H1 Cumulative Update (CU) for Exchange Server 2019 (aka CU15).

We wanted to provide an update on Exchange 2019 CU15 release, and news around Exchange support for Windows Server 2025.