Quick Tip: How to remove the address history from Apple Mail when writing an email
OK, thought i'd share this with you guys. Have you ever had to type an email on your macbook and in the TO: address field, have old or irrelevant contacts come up, as a result of you having emailed that address a while back, and when you start typing a name or address, it predictively shows that one up as well? Then you'd want to remove your Address history...
It turns out its quite a simple fix. All you have to do is go to the Window menu item and then select Previous Recipients.
There you can look for any contacts you don't want, or better just erase the entire list. That way, it won't go by history and just look up your address book (unless you do need some people you don't have on your contact list, to email).