To add someone to your "Blocked Senders" list in Office 365, please follow the procedure below:
- Login to Office 365 at https://office365.atu.edu
- Click the gear icon in the upper right corner.
- In the "Settings" pane, under "Mail" click "Junk email". This will open the "Junk email" pane.
Under "Blocked senders and domains" click "Add" , type in the email address or domain to block, and press Enter.
5. Click on the "Save" button that appears at the bottom of the screen.