Microsoft 365 provides a comprehensive cloud-based approach with Advanced Threat Protection for securing your mailbox. Each day, you will receive a quarantine summary to review flagged messages. You can also go directly to your page by navigating to https://security.microsoft.com/quarantine.

Quarantine Summary

Spam and Phishing quarantine summary messages will be sent from quarantine@messaging.microsoft.com to your Office 365 email inbox on a daily basis.  You can take action on the messages directly from the quarantine summary:

• Block Sender - add sender to Blocked Senders Lists.
• Review - Opens your quarantine to review details of the message.
• Release - Releases message from your quarantine.
  Please Note: messages marked “Prevented Phish” do not have the option to release from the summary.

To review and release a message follow the these simple steps:

Step 1:  Click the "Review" button in the daily summary.
Step 2: Read the message to determine if the email is actually suspicious.
Step 3: If the email is legitimate, release the message to your inbox.

Managing Blocked Senders

Block Senders / Junk Mail

You can block senders from any folder in Outlook. Simply right click on an email message from the sender and then choose "Junk" > "Block Sender."

Add a Blocked Sender / Junkmail to Safe Senders List

You can add a sender to the safe list by right-clicking on the email message and choosing "Junk" > "Never Block Sender."