How to Remove a Spam Restriction in Microsoft Defender

If your email account has been flagged for sending spam, Microsoft may temporarily restrict your ability to send emails. An administrator can remove this restriction through the Microsoft 365 Defender portal.

How to Unblock a User in Microsoft Defender

Follow these steps to remove the restriction:

1. Sign in to Microsoft 365 Defender

   Go to the Microsoft 365 Defender portal: https://security.microsoft.com

2. Navigate to Restricted Entities

   In the left-hand menu, go to: Email & collaboration → Review → Restricted entities

   Or access it directly here: https://security.microsoft.com/restrictedentities

3. Locate the Blocked User

   Find the email account that has been restricted.

4. View User Details

   Click on the user’s name to open more details about the restriction.

5. Unblock the User

   Click the “Unblock user” button.

6. Confirm the Action

   Confirm that you want to remove the restriction.

7. Verify Access

   Once unblocked, confirm the user can send emails again without issues.

What to Expect After Unblocking

After the restriction is removed:

• The user should regain the ability to send emails
• It may take a few minutes for changes to fully apply
• If issues persist, additional review of sending activity may be needed

Need Help?

If you’re unsure why the restriction occurred or continue to experience issues sending emails through Levitate, please reach out to Levitate Support or your Customer Success Manager for assistance.