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  3. Microsoft 365 Spam filter - Whitelist and Blacklist

Microsoft 365 Spam filter - Whitelist and Blacklist

How do I approve (whitelist) and block (blacklist) emails in Microsoft spam filter?


The spam filter at Microsoft protects your inbox from spam and malware.

Emails captured by the Microsoft spam filter will appear in the Spam folder in your inbox and will be deleted automatically after 10-30 days. Remember to visit the Spam folder once in a while.

Notice

You may find that a "good" email appear in the Spam folder or that a spam email gets through the spam filter to your inbox. In these cases you can approve and block the senders yourself.

How to approve (whitelist) a sender

If a "good" email from a sender you trust appears in the Spam folder, you can choose to approve the mail sender.

  1. Open the folder Spam folder (1) in your inbox
  2. Mark the email you want to approve (2).
  3. In the main menu, select Spam (3)
  4. Select Not spam (4) in the submenu
  5. Select OK (5)

The sender is now approved and should not appear in the Spam folder again.


How to blick (blacklist) a sender

If a spam mail gets through the spam filter to your inbox you can choose to block the mail sender.

  1. Mark the email you want to block in your inbox (1).
  2. In the main menu, select Spam (2)
  3. Select Block sender (3) in the submenu
  4. Select OK (4)
  5. The blocked spam mail is now moved to the Spam folder (5).

Updated on 5. January 2021

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