Custom Email Template Testing

<?php

$to = 'asif.saho@gmail.com';

$subject = 'Email Template Testing';

$headers = "From: " . "alu@mula.com" . "\r\n";
$headers .= "Reply-To: ". "alu@mula.com" . "\r\n";
$headers .= "MIME-Version: 1.0\r\n";
$headers .= "Content-Type: text/html; charset=ISO-8859-1\r\n";

$message = file_get_contents('template.html');

mail($to, $subject, $message, $headers);