This tutorial demonstrates how to configure Apple Mail on versions of Mac OS X 10.9 and newer for @colorado.edu Gmail accounts.
Your account will now be configured and mail will begin to sync.
Some users may need to change their app security settings when using non-google/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.