รบกวนผู้รู้ สอบถามเรื่อง การส่ง PHP Mailer หน่อยค้ะ

$user_mail=$_POST['user_mail'];
$user_id=$_POST['user_id'];

error_reporting(0);
	require_once('PHPMailer_v5.0.2/class.phpmailer.php');
	$mail = new PHPMailer();
	 $mail->CharSet = "utf-8"; 
	$mail->IsHTML(true);
	$mail->IsSMTP();
	$mail->SMTPAuth = true; // enable SMTP authentication
	$mail->SMTPSecure = "ssl"; // sets the prefix to the servier
	$mail->Host = "smtp.gmail.com"; // sets GMAIL as the SMTP server
	$mail->Port = 465; // set the SMTP port for the GMAIL server
	$mail->Username = $user_mail; // GMAIL username
	$mail->Password = ""; // GMAIL password
	$mail->From = "office"; // "[email protected]";
	//$mail->AddReplyTo = "[email protected]"; // Reply
	$mail->FromName = "Webmaster";  // set from Name
	$mail->Subject = "ข้อความจากระบบ"; 
	$mail->Body = "ข้อความ</b>";

	$mail->AddAddress("[email protected]"); // to Address

	

	//$mail->AddCC("[email protected]", "Mr.Member ShotDev"); //CC
	//$mail->AddBCC("[email protected]", "Mr.Member ShotDev"); //CC

	$mail->set('X-Priority', '1'); //Priority 1 = High, 3 = Normal, 5 = low

	$mail->Send();