Setting mail.php tidak bisa berjalan

Assalamualaikum Warahmatullahi Wabarakatuh...
Mohon izin bertanya para master, ini sy sedang membuat aplikasi yg ada fungsi mail.php seperti ini,
 
<?php
 error_reporting("null");
date_default_timezone_set("Asia/Jakarta");
$nil=$_GET['m'];
$us=$_GET['us'];
$ps=$_GET['ps'];
 
include "classes/class.phpmailer.php";
$email="$nil";
$mail = new PHPMailer; 
$mail->IsSMTP();
$mail->SMTPSecure = 'tls'; 
$mail->Host = "domain anda"; 
$mail->Port = 587;
$mail->SMTPAuth = true;
$mail->Username = "email"; //user email
$mail->Password = "pass"; //password email 
$mail->SetFrom("email","nama"); //set email pengirim
$mail->Subject = "Informasi"; //subyek email
$mail->AddAddress("$email");  //tujuan email
$mail->MsgHTML("pesan.<br /><br />
 
    <h3>Username: $us</h3>
    <h3>Password: $ps</h3>
 
    Salam Hormat Kami,<br />
    user<br />
   alamat<br />
    telp");
$mail->Send();
?>
<script type="text/javascript">
    window.location="mendaftar?st=ok#fc"
</script>
 
Kendala yg saya alami adalah tidak ada email masuk ke alamat email pengunjung...Mohon pencerahannya master-master sekalian...
 
Wassalam...