const uschar *, uschar *, error_block **);
extern uschar *parse_find_address_end(uschar *, BOOL);
extern uschar *parse_find_at(uschar *);
const uschar *, uschar *, error_block **);
extern uschar *parse_find_address_end(uschar *, BOOL);
extern uschar *parse_find_at(uschar *);