Stop - Stops any action you might have started. If you accidentally start to send a message that you did not want to send, clicking on Stop, will stop it from being sent. When composing a message, first fill in the addressing section in the message window with the e-mail address of the person to whom you are sending the message. This line can be left blank. It is used to send a copy of the letter to another person who might be interested in the same subject matter.
Many people use it to send themselves a copy of the e-mail message.
It is similar to receiving a return receipt from the U.S. Postal Service. The large space in the middle of the message window is where the body of your message is typed. It is important to remember to keep your messages to the point, and always conclude with your name. In the Subject line indicate in a brief phrase, what your message is regarding. Getting Mail Mail that is sent to you is not actually sent directly to your computer.