Contacts @ BYUI
There are a number of pages across the BYUI site that list contacts for departments and offices. This page specifically talks about utilizing contacts within Outlook.
BYUI email addresses are accessible via a Global Address List (GAL), which includes all employees and students.
You can also create a personal Contact Group/List just for your own use.
A personal Contact Group/List is different than Outlook AutoComplete, as explained here: http://office.microsoft.com/en-us/outlook-help/delete-a-name-from-the-auto-complete-list-HA010355568.aspx