Author: Bill Blinn. I know that I've done this before and now I can't remember how, or find it in the help file, or via an online query.
A mailing list that I follow used to be firstname.lastname@example.org, but now it's email@example.com and the old address no longer works.
I have removed the old address from the Address Book, but it still shows up (as the primary entry) when I type the first few letters.
Could someone please tell me how to get rid of the old entry?