This tutorial demonstrates how to configure Outlook 2010, 2013, and 2016 on Windows for @colorado.edu Gmail accounts. The screenshots are for Outlook 2013, but the steps are the same for all versions.
You may need to enable IMAP for your account prior to configuration of your email client (https://mail.google.com). To do this:
Some users may need to change their app security settings when using non-google and android email programs. While signed into your Gmail account in a browser, open the Google Apps menu, then select My Account.
*Note: You should try to connect your account without changing these settings and change only if the previous steps don't work.