php html电子邮件帮助?

I'm using below code for php html email:

   $to      = $email; 
   $subject = 'ABC'; 
   $message = $content;
   $headers  = "MIME-Version: 1.0
";
   $headers .= "Content-type: text/html; charset=iso-8859-1
";
   $headers .= 'From: ABC <a@b.com>'."
";
   mail($to, $subject, $message, $headers); // Send our email

where

$content='<html>
    <head>
      <title>Thanks</title>
    </head>
    <body>
        <div>
            <b>Thanks for your email</b>
        </div>
    </body>
    </html>'

Now the email received contains:


 
 
 




 Thanks for your email




 

I have read several examples, I'm not doing anything wrong as far as format of header goes. Can't identify problem, help? Also, any help suggestions with implementation of e-newsletter would be helpful.

First of all no need to use <Head> tags in a mail formatted in HTML.

Try this:

$content = '<html><body>';
$content .='<div><b>Thanks for your email</b></div>';
$content .='</body></html>';

Or this:

$content = "
<html>
    <body>
        <div>
            <b>Thanks for your email</b>
        </div>
    </body>
</html>";

One of them will do the trick.

may be are interpreted as Encoded HTML Text .. so use html tags <br> and see for