- Open Outlook and go to the File tab.
- Select "Account Settings" and then "Account Settings" again from the dropdown.
- Go to the Email tab and select your account.
- Click on "Change" and then "More Settings".
- Go to the Advanced tab and click on "Add".
- Enter the name of the distribution email box and click "OK".
- Click "Apply" and then "OK" to close the settings windows.
- Restart Outlook.