Creating Email Rules to Manage Spam
You can set up rules that tell Outlook what to do with different messages you receive. For example, if you receive a spam email, you can identify it as spam with a rule and keep it from appearing in your Inbox again. You can also create rules to filter other types of unwanted emails.
Right-click a message on which you want to base a rule, and click Rules.
Click Create Rule.
The Create Rules dialog box opens; ...