please i am trying to make the message show on newline as the customer type it, but i am getting /r/n between each line and also trying to make the $body .= $_SESSION['username']; appear on a separate line the code is below

PHP Code:
$body .= $_SESSION['username'];
    
$body .= $message;
    
$to $email;
   
$subject "copy of your notification"
$headers "From: [email]noti@r.co.uk[/email]\r\n";  
$headers  .= 'MIME-Version: 1.0' "\r\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' "\r\n";
$headers .= 'Bcc:noti@r.co.uk' "\r\n";
mail($to,$subject,$body,$headers);
    }
    }  
?> 
HTML Code:
<p>
<form action='notification.php' method='Post' class='rl'>
    <div>
    <label for='message' class='fixedwidth'>Message</label>
    <textarea name="message" rows ="7" cols="40" id="message"></textarea>
    </div>

    <div class='buttonarea'>
            <p>
            <input type='submit' name='notify' value='Notify'>
            </p>
            </div>
            </p>
</form>