int mutt_addr_is_user(address_t *);
address_t *mutt_get_address(ENVELOPE *, const char **);
void mutt_create_alias(ENVELOPE *, address_t *);
address_t *mutt_expand_aliases(address_t *);
void mutt_expand_aliases_env(ENVELOPE *);
int mutt_addr_is_user(address_t *);
address_t *mutt_get_address(ENVELOPE *, const char **);
void mutt_create_alias(ENVELOPE *, address_t *);
address_t *mutt_expand_aliases(address_t *);
void mutt_expand_aliases_env(ENVELOPE *);