Add Mac OS X Auto-Complete List Addresses to Your Address Book
Just because you don’t see these contacts in your address book doesn’t mean they aren’t stored. OS X mail caches every email address to which you’ve ever sent a message. You might want to make them more accessible by adding them to your address book. Screen shot courtesy of Coyote Moon, Inc. Given that OS X Mail obviously recognizes all these recipients, you might think importing them should be easy....