If you think that someone has been using your account, change your password. People online aren't always who they say they are. Be cautious when giving out information, such as address, phone number or credit card number. Parents should supervise their children's use of email and know who child's online friends are. Sending chain letters and junk mail is generally frowned upon by the Internet community.
Flames are derogatory messages which attack someone's character.
Each person on Hotmail has a different user id. Since the reader cannot see your facial expressions, you can use characters to enhance the meaning of your messages. Some are standard and some evolve between people who frequently send email. Here are three of the most common ones.