Code displays in php generated email

[dlcmpls]

Hello everyone.  I have a script that is used to process a contact form.  When I receive the email from the script I see code in the email, like this:

[code]

From: [email protected] X-pstn-levels: (S:16.29645/99.90000 R:95.9108 P:95.9108 M:97.0282 C:98.6951 ) X-pstn-settings: 5 (2.0000:2.0000) s gt3 gt2 gt1 r p m c X-pstn-addresses: from forward (good recip) [561/25]

[/code]

The rest of the email is fine.

Here's a bit of the code that generates the email:

[code]

// To send HTML mail, the Content-type header must be set

$headers  = 'MIME-Version: 1.0' . "\r\n";
$headers .= "To: [email protected]" . "\r\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";

// Additional headers
$headers .= "From: $email" . "\r\n";

if ($_POST['id'] == 'book') {
$headers .= 'Cc: [email protected]' . "\r\n";
}

// Mail it
mail($to, $subject, $messagecontent, $headers);

}

[/code]

Anyone have suggestions?