Rules allow you to move, flag, and respond to email messages automatically. You can also use rules to play sounds, move messages to folders, or display new item alerts.
The easiest and most common rule to create is one that allows you to move an item from a certain sender or with certain words in the subject line to another folder. You can create this rule directly from a message you've already received.
Set up email rules - Video
Manage email messages by using rules - web page
Additional Outlook Rule help can be found at the bottom of this web page.
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