public function getEmail($person_name = null, $domain = null)
	{
		$username = $this->getUsername($person_name);
		
		$domains = [];
		$domains[] = !empty($domain) ? $domain : $this->getDomain();
		$domains[] = 'gmail.com';
		$domains[] = 'yahoo.com';
		$domains[] = 'me.com';
		$domains[] = 'msn.com';
		$domains[] = 'hotmail.com';
		
		$domain = $this->fromArray($domains);
		
		return preg_replace('/[^0-9a-z_A-Z.]/', '', strtolower($username)) . '@' . $domain;
	}