extern const uschar *parse_message_id(const uschar *, uschar **, uschar **);
extern const uschar *parse_quote_2047(const uschar *, int, uschar *, BOOL);
extern const uschar *parse_date_time(const uschar *str, time_t *t);
extern const uschar *parse_message_id(const uschar *, uschar **, uschar **);
extern const uschar *parse_quote_2047(const uschar *, int, uschar *, BOOL);
extern const uschar *parse_date_time(const uschar *str, time_t *t);