To add an address or domain to the Safe Senders list in Outlook:
- Go to the Home tab.
- In the Delete group, select Junk .
- Select Junk E-mail Options .
- In the Junk Email Options dialog box, go to the Safe Senders tab.
- Select Add .
- In the Add address or domain dialog box, enter the email address or domain name you want to whitelist. For example see below
- Click OK
- The email address or domain appears in the Safe Senders List.
- Select OK.