Access Exchange mailbox from web browser

Instructions on accessing an Office 365 Exchange mailbox from a web browser:

1. Open a web browser (Internet Explorer, Chrome, Firefox, etc.)
2. Navigate to office365.com
3. Click the "Sign In" link at the top left corner of the window.
4. Enter user's email address (username@allianceontheweb.org) in the window at the center of the screen. If prompted, click "Work or School Account."
5. Enter password associated with the user's email.
6. In the list of tiles (should be top-left), click "Mail"