LIST *item;  for (item = env->userhdrs; item; item = item->next) rfc2047_decode (item->data, item->data,  mutt_strlen (item->data) + 1);
void mutt_unprepare_envelope (ENVELOPE *env){  rfc822_free_address (&env->mail_followup_to);  /* back conversions */  rfc2047_decode_adrlist (env->to);  rfc2047_decode_adrlist (env->cc);  rfc2047_decode_adrlist (env->from);  rfc2047_decode_adrlist (env->reply_to);  rfc2047_decode (env->subject, env->subject, mutt_strlen (env->subject) + 1);}