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mediumExchangedeprecationm365_message_center · Dec 2, 2025
(Updated) Update to EWS Access for Kiosk / Frontline Worker Licenses
The change was to block EWS access for mailboxes without EWS license rights, but it has been discontinued. This impacts admin users managing Exchange Online.
“Services: Exchange Online. <p>Updated October 16, 2026: We have decided not to move forward with this change. We apologize for any inconvenience. </p><p>We're making some changes to Exchange Web Services (EWS).</p><p>Starting October 1, 2026 (previously June 30), we will start to block EWS access for all mailbox…”
View original article →Security
endpoint_securitycloud_security
Audience
admin
Environment
cloud
Classification confidence: 95%
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