/* Try to identify user by email. */
        $user_id = q_singleval('SELECT id FROM '. sql_p .'users WHERE email='. _esc($from_email));

        /* If user was not found via email, try to look the user up by login. */
        if (empty($user_id) && !empty($from_name)) {                if ($GLOBALS['FUD_OPT_2'] & 128) {
                        $user_id = q_singleval('SELECT id FROM '. sql_p .'users WHERE alias='. _esc(make_alias($from_name)));
                } else {
                        $user_id = q_singleval('SELECT id FROM '. sql_p .'users WHERE login='. _esc($from_name));
                }
        }