PowerShell toolkit for authorized Microsoft Exchange assessments. Upstream documents self-mailbox search, privileged organization-wide mailbox search over EWS using ApplicationImpersonation, GAL and user discovery, and legacy OWA/EWS password-spray modules. Exchange Online EWS requires OAuth; Microsoft's current schedule begins global EWS disablement in October 2026 and fully disables EWS by April 2027. Check tenant EWS availability and do not assume legacy examples work unchanged in cloud tenants.
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