You can delete folders in Yahoo Mail right from your inbox's left-hand sidebar under the "Folders" label.
You can manually add new contacts to Yahoo Mail by using the "Add a new contact" feature in the Contacts tab or hovering over ...
You delete a mountain of old newsletters, sweep them into Trash, and hit Empty. For a blissful moment, the folder looks clear. Then, bam, messages reappear like socks after laundry day. If Yahoo Mail ...