Your MS Exchange mailbox (Staff and Full-Time Faculty mail) is protected from spam by Office 365.  You will receive daily Quarantine Notification messages from Microsoft 365 Security to notify you of any messages that have been placed in quarantine.  Any legitimate mail caught by mistake can be released directly from this message or from the quarantine portal (see details below).


Mail left in quarantine will automatically be deleted after 30 days.


Handling Quarantined Email


Legitimate messages placed in quarantine may be released into your inbox one of two ways:

  • directly from the daily quarantine notification email message or
  • from the Microsoft Defender Quarantine Center(more info below).
    • It might be helpful to bookmark the above link in your browser of choice for easy future navigation.


Users can check the quarantine portal anytime or whenever they are missing expected email.


From the quarantine notification message:


If you receive mail that has been placed in quarantine you'll receive a message like that shown in the image below.  The following options will be available to you by clicking the respective links in the message or you can choose to do nothing.

  • Review Message - Selecting this action takes you to the details of the message in quarantine.  Further action to release or block the message would still be required.
  • Release - Selecting this action opens an informational web page that acknowledges the message was released from quarantine.  The message is then delivered to the user's mailbox.
  • Block Sender - This action opens an informational web page to acknowledge that the message was added to the Blocked Senders list in the user's mailbox.
  • Do Nothing - Message will remain in quarantine and be deleted automatically after 30 days.



From the Office 365 Security & Compliance Center:


Quarantined email can also be handled in the Office 365 Security & Compliance Center.

  1. Go to https://security.microsoft.com/quarantine using your Park-provided Office 365 credentials.
  2. If necessary, click Email & collaboration and then click Review (this should load by default).
  3. A list of your emails in quarantine should be now be displayed.  When loading into the Quarantine page, you may initially see a message saying "No Data Available".  It is normal for this page to sometimes take up to 60 seconds to initially load your information, and there is no visible indication that information is loading.  Please let this page load; if there are messages to manage they will load eventually.
  4. Click any message, or the checkbox(es) next to messages to select them, then choose from the options given, which will most commonly be:
    • Release email - delivers message to your Inbox.
    • Preview message - Shows you the content of the message to help you decide what to do.
    • Delete from quarantine - Deletes the message from quarantine permanently so you will not see it again.
    • Block Sender - prevents further messages from this sender from being listed in your quarantine (emails will continue not delivering to your mailbox)

See Find and release quarantined email for details.