Listen..... If you visit a website, your browser automaticly stores cookies and so on. Now, if I have got a Server with a website on it, and you have a look at my website, I can see your IP address your e-mail address and a lot more but this is another story. If you recieved a lot of this mails, it could be that you've visited a webpage that automatically stores the e-mails and sends viruses or other silly stuff to users. If you want to stop this "shi"t" happening, just dissable your cookies in your browser. I write you the steps you have to follow to deactivate the cookies in your browser:
1) Tools
2)Internet Options
3)Security
4) Click on Internet
5) click on Custom Level
6) Find Cookies in the list and choose prompt or disable.
If you put promt he'll ask you everytime a site wants to acces your cookies and this might be a bit annoying with time.
Yours,
BASIC