Commonly used email contents included: 1 sender: The person or organization that sent the email. [2. Receiver: The person or organization that receives the email.] 3. The subject of the email is the general content of the email that is used to attract the attention of the recipient. 4."content" refers to the body of the email, including the content, purpose, and expected reply. 5. An attachment refers to an attachment that can be a picture, a file, a text file, etc. 6. sender address: The sender's email address is used to identify the source of the email. 7. Receiver address: The recipient's email address is used to identify the recipient of the email. 8. signature: The sender's signature at the bottom of the email can include personal information, blessings, etc. 9 date: The date the email was posted. 10 Trash box: An inbox or folder in an email system used to store unread emails.