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- Click the drop down arrow in the righthand right hand side of the search box at the top of the page.
- Specify the criteria to define matching message (e.g. From, To, Subject, Has the Words, etc.)
- Click Create Filter.
- In the next screen specify the action to take for matching messages (eg e.g. Apply label).
- Click the blue Create Filter button.
Whenever you receive a message that matches the criteria, the defined action will take place.
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