16.9 Message forwarding

     When FD unpacks received mail packets, it will always mark
     messages as in-transit if they are not destined for your system
     (including any AKAs). These messages can be forwarded by using
     FORWARD-FOR and FORWARD-TO, but FD will under NO circumstances
     forward mail, that has not been entered or modified locally,
     automatically to systems unless one or both of these two commands
     are used.