If you send an -> email from one computer, but you want to receive the reply at another computer, you should insert the -> email address of the other computer into the "reply-to" field in the -> header of the -> email
Setting this adds a line to each message sent out on the list indicating that the preferred email address to which responses should be sent is the list address Mail readers such as pine pay attention to this header This is to prevent the sender of the message from being included on the "To: " line along with with the list itself, thus getting an extra copy of the message