To add someone to your safer sender list in Office 365, please follow the procedure below:

  1. Login to Office 365 at
  2. Click the gear icon in the upper right corner and then click "View all Outlook settings". This will open the "Settings" pane.

  3. In the "Settings" pane, click "Junk email".

  4. Under "Safe senders and domains", click the "+ Add" link. Type an email address or domain in the input field and hit enter. 

  5. Click on the "Save" button that appears at the bottom of the screen.