If there is a Contacts folder that you don't want to display in the Show names from the list in the Address Book, do the following:

1. In the Navigation Pane (Navigation Pane: The column on the left side of the Outlook window that includes panes such as Shortcuts or Mail and the shortcuts or folders within each pane. Click a folder to show the items in the folder.), click Contacts.
2. Under My Contacts, right-click the Contacts folder that you want to remove from the Address Book, and then click Properties on the shortcut menu.
3. Click the Outlook Address Book tab, and then clear the Show this folder as an e-mail Address Book check box.
4. Click OK.
5. On the Standard toolbar, click Address Book .
6. In the Show names from the list, make sure that the Contacts folder is not displayed in the list. If it is still displayed in the list, follow the steps in the next procedure.

To delete the Contacts folder from the Address Book, do the following:

1. On the Tools menu, click E-mail Accounts.
2. Click View or change existing directories or address books, and then click Next.
3. Select Outlook Address Book, and then click Change.
4. Select the Contacts folder that you want to remove, and then click Remove Address Book.
5. Exit and restart Outlook.

If you want a certain address list to appear in the Address Book, but you do not want Outlook to use that address list to resolve names on the To line, do the following:

For example, you only want to check names against your Contacts folder and not against the Global Address List (Global Address List: The address book that contains all user, group, and distribution list e-mail addresses in your organization. The administrator creates and maintains this address book. It may also contain public folder e-mail addresses.), LDAP (Lightweight Directory Access Protocol (LDAP): A protocol that provides access to Internet Directories.) address book, or some other address list. However, you still want to click the To button and then be able to select names in that address list from the Address Book.

1. On the Standard toolbar, click Address Book .
2. In the Address Book dialog box, on the Tools menu, click Options.
3. Under When sending mail, check names using these address lists in the following order, click the Contacts folder or address list that you want to remove, and then click Remove.