This is commonly known as Resolve contacts. You can configure Outlook to look for matching contacts when you tab out of the To, CC, or BCC field. The name change affects only the address book display, not the actual name of the folder.
To add any folder containing Contact items to the Outlook Address Book: Use the same procedure to remove Contact folders from your Outlook Address book, unchecking the option to use as an Outlook Address book.Īdding Other Contacts Folders | Automatic name checking | Notes | More Information
