The easiest way to access your Harvard email and calendar is by using the Outlook for the web. There are new great options, including working offline and accessing Office web applications from you browser. To configure, use the gear in the upper right corner and edit your settings.
If you need/want the full Outlook client, you will need to obtain a valid license. After installing, then you simply need to supply your Harvard primary email address and password when configuring a new mailbox. All other settings will update automatically.
For help with mobile devices, please visit the Getting Started page.