Envoyer un mail function PHP

mail.php

<?php
    $to = "[email protected]";
    $subject = "VIRALPATEL.net";
    $body = "Body of your message here you can use HTML too. e.g. <br> <b> Bold </b>";
    $headers = "From: Peter\r\n";
    $headers .= "Reply-To: [email protected]\r\n";
    $headers .= "Return-Path: [email protected]\r\n";
    $headers .= "X-Mailer: PHP5\n";
    $headers .= 'MIME-Version: 1.0' . "\n";
    $headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
    mail($to,$subject,$body,$headers);