How do I stop advertisements from my email?

My email keeps sending out advertisements that I did not authorize and did not send how do i get it to stop?

• I have even went in to check the old messages that was sent even to myself they change from day to day to whatever new message was sent for the new day. 1 goes out every day early in the morning, which is usually the time I am at work and not around the computer. also no one has my pass word just to let everyone know.

• Answer:

  You've probably got a virus, and your PC is now a mailbot for a spammer. There are millions just like you out there. The emails change frequently when the bot 'phones home' to ask what to do next. -That- communication is essentially invisible because you can't actually 'ese' it happen by something on a screen, only by the effects afterward. Call your ISP tech support and ask them what they recommend to deal with it. They've heard it before and are experienced, and are enthusiastic about keeping you as a customer by keeping you happy. Zonealarm plus AVG have always served me very well, and they're free. (Actually there are ways to see the bot communication when it phones home, and then you -could- block that communication, but that's a technique I'm not familiar with and it doesn't actually solve the problem it's just as bandaid.)