1.) Open the Calendar Application
2.) Click on Calendar in the upper left hand corner by the Apple Logo.
3.) Choose Preferences from the drop down list.
4.) Select Accounts from the bar accross the top.
5.) Click on the plus symbol (+) in the bottom left corner.
6.) Choose Exchange from the Account Type Drop Down list, enter your Name, Email Address, and Password.
7.) On the Next screen enter a Description, verify the username, and enter orange.iwunet.indwes.edu as the server.
8.) Place checkmark in front of what you would like to pull in.
9.) Click Create