int mutt_cmp_header (const HEADER*, const HEADER*);
-time_t mutt_decrease_mtime (const char *, struct stat *);
int is_from (const char *, char *, ssize_t, time_t *);
const char *mutt_charset_hook (const char *);
int mutt_is_list_cc (int, address_t *, address_t *);
int mutt_is_list_recipient (int, address_t *, address_t *);
int mutt_lookup_mime_type (BODY *, const char *);
-int mutt_match_spam_list (const char *, rx_t *, char *, int);
int mutt_num_postponed (int);
int mutt_parse_bind (BUFFER *, BUFFER *, unsigned long, BUFFER *);
int mutt_parse_exec (BUFFER *, BUFFER *, unsigned long, BUFFER *);