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Microsoft Defender Quarantine Portal

Posted
Updated
Bychris_fry

You can release a blocked or quarantined email in Office 365 by going to the Microsoft Defender Quarantine Portal, selecting the message and clicking Release.

Steps to Release an Email

  • Open Portal: Go to Microsoft Defender Portal and navigate to Email & collaboration > Review > Quarantine.
  • Find Message: Select the Email tab to view your blocked messages.
  • Select and Release: Click on the message you want, then select Release email from the flyout menu or the top action bar.
  • Confirm: Check the confirmation box if prompted and approve the release; the message will arrive in your inbox shortly.

If you cannot find the message or get an error, let me know if you are signed in as an end-user or an IT administrator so I can provide the right permission steps.