if (cur->content->parts) return;
void mutt_parse_mime_message (CONTEXT *ctx, HEADER *cur){  MESSAGE *msg;  if (cur->content->type != TYPEMESSAGE && cur->content->type != TYPEMULTIPART)    return; /* nothing to do */  if ((msg = mx_open_message (ctx, cur->msgno)))  {    mutt_parse_part (msg->fp, cur->content);#ifdef _PGPPATH    cur->pgp = pgp_query (cur->content);#endif /* _PGPPATH */    mx_close_message (&msg);  }}