If this is happening with you intending it (which sounds likely) then your computer has picked up a virus from somewhere. You need an anti-virus product to remove it. There are many other answers on...
Hmmmm what do you think it means. Contact = contact, email = email, contact email = contact email. Hellllloooooo you talk the person that has "contact email". SIMPLE 1+1=2
Get a gmail account. They are really good at that. If you already have a gmail account, then I'm sorry, I don't know how to help you. In gmail, spam goes to spam, it does not get automatically...