1. Click the Settings Icon
in the top right corner of your Outlook Web app.
2. The Quick Setting Menu will open to display the most frequently used customization options, including:
3. If you are looking for a setting you don't see listed above, you can also use the Search Outlook Settings search bar at the top of the window.
4. You can also click View All Outlook Settings (at the bottom of the window) to display all customizable setting in a separate window.
Visit the Outlook: Getting Started article to learn more about using Microsoft Outlook.