Command: SEND   This command is used to send a mail message to another
                station.  You will be prompted for the station being sent
                to, the subject, and the message.  The mail message may be
                terminated with either a ctrl/Z or the text /EXIT.  If you
                wish to cancel the mail message, send a ctrl/Y to the system.
                The /PRIVATE qualifier sends a private message; the 
                /NOPRIVATE qualifier sends a public message.  The /RR 
                qualifier requests a return receipt, so that when the 
                addressee reads the mail, a confirmation is returned to the
                sender.
      Syntax:   Send
                Send/Private
                Send/NOPrivate
                Send/RR