Remove addresses from your type-ahead list
A new preference allows you to remove addresses from your type-ahead list.
When you begin to type an address in a names field such as the To field in new message, type-ahead automatically shows you a list of matching addresses to choose from.
You can now remove addresses from this list. For example, if there are two addresses for one person but you use only one, you can remove the address that you don't use.
For more information, see How do I remove unused addresses from my type-ahead list?