Fortunately, Spam Inspector lets you keep a list of known, friendly senders whose messages always make it to your Inbox. I have added the "about.com" domain to this list, for example, to make sure all the About newsletters I have subscribed to are unhampered by any filtering activity.
To add a sender or domain to the Friends List in Spam Inspector:
- Select Spam Inspector | Manage Friends List... from the Spam Inspector toolbar or from the Outlook menu.
- To add a single email address, make sure Email is selected under Add a New Friend.
- To add a complete domain, select Domain.
- Type the email address or domain name you want to add.
- To friends-list all About newsletters, type "about.com", for example.
- Click the >> button.
- Now click Close.

