| A | B |
| e-mail | an electronic message sent from one computer to another |
| mail server | e-mail passes from this type of computer to another as it travels over the Internet |
| SMTP | Simple Mail Transfer Protocol |
| POP | Post Office Protocol |
| bounce | a returned email message |
| mail daemon | mail program that exists to manage email messages |
| spam | unsolicited email sent to many people simultaneously |
| mailbot | email software that automatically replies to email messages |
| flame | an e-mail message that is particularly hostile or mean |