php email is not getting send
<p>I am just wondering if anybody sees any error here, the code executes but I never get the email, any suggestions?</p>

<pre><code>$to = $_POST['to_email'];
$subject = $_POST['subject'];
$message='&lt;p&gt;&lt;b&gt;Message:&lt;/b&gt; '.str_replace("\n.", "\n..", $_POST['message']).'&lt;/p&gt;';

$headers = "From: " . strip_tags($_POST['from_email']) . "\r\n";
$headers .= "Reply-To: ". strip_tags($_POST['from_email']) . "\r\n".
        'X-Mailer: PHP/' . phpversion();

mail($to, $subject, $message, $headers);
</code></pre>
