This page describes how to access your SEAS email through a Web interface. If you have a mailbox in Office 365 you will be able to use this interface. If your mail is being forwarded to another server or service, you will not be able to use this interface because your email does not reside in Office 365.
Login to SEAS Webmail via browser
Make sure you're connected to the Internet via a wired or wireless connection.
Open any browser.
Browse to https://outlook.com/harvard.edu
For your username, enter your Harvard Key login name. This is usually your email address (e.g. <user>@seas.harvard.edu)