Microsoft Blocks Exchange Web Services (EWS) Access: What You Need to Know Before March 2026

Microsoft is cracking down on Exchange Web Services (EWS) access, starting March 2026. This video explains the upcoming changes, who will be affected, and what you need to do to avoid disruptions.
We’ll cover:
What is EWS and why is Microsoft blocking it? Learn about the API’s role in accessing Exchange Online mailboxes and the security concerns leading to its deprecation.
Who will be impacted? Understand which license types will lose EWS access and the workaround solutions Microsoft offers.
The Midnight Blizzard Incident: Explore how this security breach accelerated Microsoft’s EWS deprecation timeline.
Alternatives to EWS: Discover Microsoft’s recommended replacement, the Graph API, and its limitations compared to EWS.
Timeline for Changes: Get a clear breakdown of the key dates for EWS access restrictions and global disablement.
Preparing for the Transition: Learn how to check your licenses and plan for a smooth transition away from EWS.
Don’t get caught off guard! Watch now to ensure your Exchange Online environment remains functional after March 2026.
Keywords: Microsoft Exchange, EWS, Exchange Web Services, Microsoft 365, Office 365, Graph API, Midnight Blizzard, API deprecation, email security, IT administration