| A | B |
| Address book | E-mail feature that allows you to save e-mail address and other contact information |
| Attachment | Files that attached to an e-mail message |
| Blind copy (Bcc:) | Feature used when the sender of an e-mail does not want the recipient to know that the message was also sent to another person |
| Body | The message of the e-mail |
| Carbon copy | Notation indicating that someone else will receive a copy of the message |
| Draft | An e-mail that is saved to be sent later |
| Domain name | Ending of an e-mail address that identifies the Internet Service Provider |
| E-mail | Method of exchanging short digital messages |
| E-mail address | The unique address of an e-mail user; consists of their username, the at sign, and domain name |
| Extension | Identifies the type of site an e-mail was generated from |
| Inbox | Folder that displays e-mail messages that have been received |
| Internet Service Provider (ISP) | A company that provides connections to the Internet |
| Outbox | Folder that displays e-mail messages that are ready to be sent |
| Sent | Folder that displays e-mail messages that have been sent |
| Subject line | The subject of the e-mail |
| Username | First part of an e-mail address that identifies the user |