Quero enviar uma imagem pelo correio.Como adicionar uma imagem para que ela apareça no email Quero adicionar uma imagem ao CORPO DA MENSAGEM DO CLIENTE. Como usar html no corpo da mensagem do cliente?

Aqui está o meu código:

<?php
/* subject and email varialbles*/

$emailSbuject = 'Enquiry';
$webMaster = '[email protected]';
$emailSbuject2 = 'Thank you';
$client = ' $emailFeild\r\n';
/*gathering data variables*/

$nameFeild = $_POST['name'];
$cityFeild = $_POST['city'];
$countryFeild = $_POST['country'];
$emailFeild = $_POST['email'];
$phoneFeild = $_POST['phone'];
$otherFeild = $_POST['other'];
$questionFeild = $_POST['question'];
$commentFeild = $_POST['comment'];
$phone1Feild = $_POST['phone1'];
$hear1Feild = $_POST['hear1'];
$hear2Feild = $_POST['hear2'];
$hear3Feild = $_POST['hear3'];
$hear4Feild = $_POST['hear4'];
$referralFeild = $_POST['referral'];
$otherhearFeild = $_POST['otherhear'];

// admin message body
$body= <<<EOD
Contact Form Details of $nameFeild

Name: $nameFeild \n
City: $cityFeild \n
Country: $countryFeild \n
Email: $emailFeild \n
Contact Phone: $phoneFeild \n
Other Phone: $otherFeild \n
Question: $questionFeild \n
Comment: $commentFeild \n
Contact Over: $phone1Feild \n
Known Us through: \n

 $hear1Feild
 $hear2Feild
 $hear3Feild
 $hear4Feild
 $referralFeild
 $otherhearFeild
EOD;
// Client message body
$body2 = <<<EOD


Dear $nameFeild



         Thank u for contacting IntaxFin. One of our representatives will contact you the     soonest. If you have more questions or information needed, please let us know. We are happy to serve     you! \n

        -From
         IntaxFin Team \n http://www.intaxfin.com \n

         Like us on Facebook \n         
         Follow us on Twitter \n         
         Connect with us on LinkedIn \n


-------------------------------------------------------------------------------------------------                     e-mail was automatically sent by IntaxFin Administration Directory and is for your reference. Please do not reply to this e-mail address.

Powered by HexCode Technologies Pvt. Ltd.

EOD;
    $headers = "From: $emailFeild\r\n";
    $header = "From: [email protected]\r\n";
    $success = mail($webMaster,$emailSbuject,$body,$headers);
    $success1 = @mail($emailFeild,$emailSbuject2,$body2,$header);
    /*Result*/


    $theResults = <<<EOD
EOD;

echo  "$theResults";

header("Location: http://www.intaxfin.com/thankyou.html");
exit;
?>