The term 'FORWARD, AS MAIL' can be solved by three different crossword solutions: REDIRECT (8 letters), RESEND (6 letters), and SENDON (6 letters). Redirecting mail is the process of sending a piece of mail to a different address than the one originally intended. Resending mail is the process of sending a piece of mail again, usually because it was not delivered or received correctly the first time. Finally, sendon is the process of sending a piece of mail on behalf of someone else. All three of these processes are commonly used in the postal service to ensure that mail is delivered to its intended recipient.