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Exchange Team Blog articles

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Latest posts

Last updated 2 days ago

Upcoming retirement of OWA Light in Exchange Server

2 days ago

We are announcing our plan to retire and disable the OWA Light...

Introducing EWSAllowedAppIDs: Preparing for the Final Phase of EWS Retirement

22 days ago

Exchange Web Services (EWS) retirement in Exchange Online is entering its final...

Released: June 2026 Exchange Server Security Updates

about 1 month ago

Microsoft has released Security Updates (SUs) for vulnerabilities found in Exchange Server...

How to determine which Resource Mailboxes are being actively used

about 2 months ago

Today we wanted to take a few minutes to discuss a topic...

Replacing IIS SMTP virtual server with Exchange Edge Transport

about 2 months ago

Years go by and we continue to see customers still relying on...

Writeback for Cloud-Managed Remote Mailboxes: Now in Public Preview

about 2 months ago

In our previous posts, we announced the Public Preview and the General...

Addressing Exchange Server May 2026 vulnerability CVE-2026-42897

about 2 months ago

On May 14, 2026, Microsoft disclosed CVE-2026-42897, a reported vulnerability affecting Exchange...

No Exchange Server Security Updates for May 2026

about 2 months ago

We wanted to let the Exchange Server community know that there are...

Retirement of Direct Exchange ActiveSync Certificate-Based Authentication by End of 2026

2 months ago

We are announcing the deprecation of Exchange ActiveSync (EAS) certificate-based authentication (CBA)...

General Availability of Mailbox Import and Export Microsoft Graph APIs

2 months ago

As a part of our continuing march to Exchange Web Service (EWS)...

High Volume Email reaches General Availability in Exchange Online

3 months ago

As we discussed High Volume Email (HVE) several times since it was...

No Exchange Server Security Updates for April 2026

3 months ago

Although Exchange 2016 and 2019 are now out of support, some customers...