As part of our ongoing efforts to deprecate Exchange Web Services (EWS), starting with March 1, 2026, we will start to block EWS access for all mailboxes without license rights to EWS. This is anothe...
Published Dec 02, 2025
Version 1.0
Blog Post
It's important to know that EWS will be disabled in Exchange Online in October 2026 for all mailboxes, regardless of their M365 license.