mlsys_transmit_.pl1 doesn't return an error code when it doesn't know a routing path to a destination

[Jim Lippard]

When mlsys_transmit_.pl1, line 3088, dealing with network mail, hits a destination for which it doesn't know a routing path, it attempts to return mlsys_et_$cant_compute_route, but sets the value of the variable code instead of the variable recipient.code, so no appropriate error code is returned to the caller.