Dolby

If you look at the full email header of a infected email you will see the email came from some place else. The virus goes through your emails and address books and sets the sender email to one of those email address tricking you into thinking it was some one else. But like I said if you look at the full header (if your a geek you know what I'm talking about) the virus cant hide the real email server it was sent from only the reply-to address it changes.

Luckly I'm not on to many peoples email address books and stuff so I havent gotten too many klez's.