Unwanted Emails

Help! I seem to have been targeted by a phishing scam; I have all these emails bombing my account. They appear to be newsletter sign-ups, and other legit sources; however, I did not request info from these folks. I've tried reporting as phishing, blocking, etc. but the emails keep pouring in. So far, over 8000 in about 16 hours. I've reset my filtering setting to "exclusive" for my inbox, but, if i receive an email from a potential new client, I really can't sift through all the junk mail. Somebody help me please. ~Catchmeifucan