Mailbox Archive Runner for Exchange Online. Enables the archive, assigns the MRM policy, clears documented blockers, runs the Managed Folder Assistant in passes and proves what moved from Exchange's own counters. Read first, approve every change, nothing deleted.
powershell mrm exchange-online retention-policy microsoft-365 email-archiving archive-mailbox managed-folder-assistant
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Updated
Sep 5, 2026 - PowerShell