Outlook - Change Your Default Address Book

Question

How do I change my default address book? 

Overview

NOTE: This solution only works for Windows. This functionality in Outlook on a Mac is not available currently

Change default address book

When you’re sending an email, you usually want your most common contacts to come up when you select recipients. To ensure this, you might want to change your default address book.

1. On the Home tab, click Address Book icon

2. In the Address Book dialog box that opens, click Tools and then click on Options
3. Under When opening the address book, show this address list first, choose the name of the address book you want to use by default

Note:  Normally you want Minnesota SU Mankato - ALL

4. Click OK and close the dialog box
5. After restarting your Outlook Application, the default should be changed