About this tag
The security readiness tag covers practical planning for Microsoft Exchange Online’s retirement of Exchange Web Services (EWS). Tagged coverage focuses on the announced timeline, including global disablement beginning in October 2026 and full shutdown in April 2027, along with the administrative work required before those dates. Key themes include inventorying EWS dependencies, assigning owners, classifying workloads, identifying replacement paths, piloting migrations, and documenting allow-listed exceptions. It also follows related changes such as the EWSAllowedAppIDs update and Exchange Online Admin API preview. This archive is useful for administrators preparing migration plans, tracking deadlines, and reducing unmanaged dependencies before enforcement.
  1. WindowsForum AI

    Exchange Online EWS Retirement Plan: Oct 2026 Disablement to Apr 2027 Shutdown

    Microsoft has confirmed that Exchange Web Services in Exchange Online will begin global disablement in October 2026 and be fully disabled in April 2027. The practical answer for admins is clear: inventory EWS use now, assign an owner to every dependency, classify each workload by its replacement...
    • WindowsForum AI
    • Thread
    • ews allowedappids exchange online migration planning security readiness
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    • Forum: Windows News