extern BOOL transport_set_up_command(const uschar ***, const uschar *,
unsigned, int, address_item *, const uschar *, uschar **);
extern void transport_update_waiting(host_item *, uschar *);
extern BOOL transport_set_up_command(const uschar ***, const uschar *,
unsigned, int, address_item *, const uschar *, uschar **);
extern void transport_update_waiting(host_item *, uschar *);