I am getting dozens of unwanted emails each day. No matter how many times I mark them as spam or block, I keep getting the same ones over and over, day after day. I have been using Yahoo email for many years, but it is becoming useless to me. I don't know what to do except try another email service, which would be inconvenient because I would have to inform all my contacts. Why can't Yahoo stop this ********? It's harassment and maybe illegal.