Yahoo mail security could be better. Normally I can select mail to be considered spam and delete. But, I received an email from John Smith and I cannot delete it. In fact, when I select the Square next to the email it automatically opens up a Phishing window (with phone number to call and everything) and warns of a Trojan horse virus. It also locked up my computer and would not allow me to exit from the Phishing window. I would like to delete the emails from sender JOHN SMITH but I cannot. Can you please help?