Office 365 email has filters in place to protect users from spam and malicious email like phishing scams.

Messages caught by the filters are placed in quarantine for your protection. You will receive a daily quarantine report of any messages in quarantine. Any legitimate mail caught by mistake can be released directly from this message or from the quarantine portal. Additionally, senders can be added to the Safe Senders list to prevent being marked as Spam in the future.

Mail left in quarantine will automatically be deleted after 15 days.

Releasing Mail

Quarantined email that has been determined to be Spam can be manually released in the below two ways. Mail that has been determined to be Phishing or Malware will need to be reviewed by a member of IS&T before being released. In these cases, please use the Request Release button to initiate that process.

From the Daily Quarantine report:

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.

Screenshot of the Office 365 Daily Quarantine Report email

Screenshot of the Office 365 Daily Quarantine Report email

  • 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.
  • Do Nothing – Message will remain in quarantine and be deleted automatically after 15 days.

In the Office 365 Security Center:

  1. Go to https://security.microsoft.com/quarantine
  2. Click any message to select it, then choose from the options given:
    • Release message
    • Delete message
    • Preview message
    • View message header

See Find and release quarantined email for more details.

Safe Senders

You can add email addresses to your Office 365 Safe Senders List to always receive messages from specific senders. To add an email address to Safe Senders:

  1. Sign in to https://outlook.office.com/mail with your BU account.
  2. Click the Gear icon in the top right corner
  3. Navigate to Mail > Junk email and find the section labeled Safe Senders and Domains
  4. Click the + Add button to add a new email address to the list