CMailDomainRegistrar::checkDomain

static function checkDomain($user, $password, $domain, &$error)
{
	$domain = CharsetConverter::convertCharset($domain, SITE_CHARSET, 'UTF-8');

	$result = CMailRegru::checkDomainInfo($user, $password, $domain, $error);

	if ($result !== false)
	{
		if (isset($result['dname']) && mb_strtolower($result['dname']) == mb_strtolower($domain))
			return $result;
		else
			$error = 'unknown';
	}

	$error = self::getErrorCode($result['error_code']);
	return null;
}