Mail not parsing headers?

PHP
1 

	  $to = 'me@moo.com';
      $subject = 'Member Account Created';
      $message = "<b>Blarg</b><p>moo cow whatever</p>";
$headers  = 'MIME-Version: 1.0' . "\\r\
";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\\r\
";
$headers .= 'From: support@moo.com' . "\\r\
";
	  mail($to, $subject, $message, $headers);

I get out:
email from “-” (No from header)
Subject: Member Account Created
Email message body contents:
Content-type: text/html; charset=iso-8859-1

From: support@moo.com

Message-Id: <20101208161014.3FE50357003C@mail.moo.com>
Date: Wed, 8 Dec 2010 11:10:14 -0500 (EST)

<b>Blarg</b><p>moo cow whatever</p>

(note: Mail contents are still plaintext, not HTML)

Any idea what’s wrong where?

2

I just suspect it is because of \r
instead of
because this is treated differently depending upon operating system.

Or compare the codes given as an example here: http://articles.sitepoint.com/article/advanced-email-php