Address::checkMail

private function checkMail($email)
{
	if (check_email($email, true))
	{
		return true;
	}
	if ($this->checkingPunycode)
	{
		$addressWithPunycodeDomain = $this->convertAddressToPunycode($email);
		if ($addressWithPunycodeDomain)
		{
			return check_email($addressWithPunycodeDomain, true);
		}
	}

	return false;
}