When you have multiple address lists, you can control the order Outlook searches them. This is important, since Outlook stops searching additional address lists once it finds a match (or matches) in an address list.
Open the Address book's Tools, Options dialog. Change the order Outlook uses to check names in the bottom field. Use this dialog to change the address list shown by default when you open the Address Book and to control which list to use for personal addresses.
Published August 15, 2003. Last updated on May 16, 2011.