I'm being targetted by hackers!

I'm being targetted by hackers!

Help!!   I'm being targeted by hackers, they are attempting to use my email to send spam with verified  SMTP calls from Yahoo server..

Someone hacked my email and verified SMTP outgoing emails from their yahoo account pretending they're me!



I updated my password, and changed my security question.. but there's no certified way where I can invalidate SMTP certificates that were issued  :S   What can I do so he can't send in my name to others!?