When I start a new email in my Yahoo and ATT.com mail through the Windows 8 mail application, the address show up in a drop-down menu. Unfortunately, I can’t find anyway to delete any of these addresses.
The only option is to add a CC, etc… My People application shows no contacts at all. How can I remove contacts using the Windows 8 mail application?
You can try using Yahoo mail app(free) to try to edit your contacts -
http://apps.microsoft.com/windows/en-us/app/yahoo-mail/f90f38b5-101d-4efd-ab04-9d89cf0784dd