email virises can be trojens which are stuffs that look good like a game or a ligit software app and turn out to be virusis.
It is possible that your computer is infected with a virus that has stolen your login information for your email and is sending out the messages automatically to everyone in your contact list. You...
emailing is a quick way of sending a letter (post)but instead of a postman delivering it,the graphics in the computer do it for you.
they make them up or they just have that good creative sense where you kan just think of something good then send it.
letters cards invitation bills pictures