Fw and Re were commonly used symbols in emails to represent different header information. Fw(For Whom) is usually used to indicate the recipient of the email. ``` Fw: John Smith <johnsmith@examplecom> ``` <johansmith @examplecom> is the recipient's email address. The recipient is usually used to indicate the sender of the email. ``` Title: The Subject of the email ``` The Subject of the email was the subject of the email. Therefore, Fw and RE were symbols used to represent the header information of the email. They represented the sender and the receiver respectively.