GoDaddy PHP form mail issue -

In my headers field, the actual email exists on a non-godaddy server (MS Exchange), so my contact form is validating fine, but it's not relaying the information from the captured form to the destination email.  I called Godaddy, and they told me I need to include:

relay-hosting.secureserver.net

I'm not sure how to include that into my mail.php file. Here's my code:

<?php
error_reporting(1);

// user_subject field.  This is the subject that is sent to the user.  
// you can replace any fieldname on the form with [fieldname]
// edit the mail_user_template.tpl to change the body of the email
$user_subject = "Regarding Your Inquiry";
$template_file = "mail_user_template.tpl";


//$mailto = Array("info@reddinghomehelpers.com");
$mailto = Array("delello@gmail.com");
$subject="Web Inquiry: {$_POST['name']} - {$_POST['department']}";

// captcha stuff
session_start();

require_once ('securimage/securimage.php');
$securimage = new Securimage();

unset($_SESSION['captcha']);
if ($securimage->check($_POST['captcha_code']) == false) {
  // the code was incorrect
  // handle the error accordingly with your other error checking

  foreach( $_POST as $k=>$v )
  $_SESSION[$k]=$v;

  $_SESSION['captcha']="failed";
  // or you can do something really basic like this
  header("location: contact.php");
  exit();
}

if ( $_POST['tpl'] )
    $t_data=file_get_contents("mail_contact.tpl");
else
    $t_data = file_get_contents("mail_template.tpl");

$user_data = file_get_contents("mail_user_template.tpl");

foreach($_POST as $key=>$value) {
    $t_data=str_replace("[".$key."]",$value,$t_data);
    $user_subject=str_replace("[".$key."]",$value,$user_subject);
    $user_data=str_replace("[".$key."]",$value,$user_data);
}

if ( $_POST['companyname'] )
    $fromname=$_POST['companyname'];
elseif ( $_POST['name'] )
    $fromname = $_POST['name'];
else
    $fromname = $_POST['firstName'] . " " . $_POST['lastName'];

$headers = "MIME-Version: 1.0\n".
   "Content-type: text/html; charset=iso-8859-1\n".
   "From: \"ReddingHomeHelpers.com\" <info@reddinghomehelpers.com>\n".  
   "Reply-To: \"" . $fromname . "\" <".$_POST['email'].">\n".  
   "Date: ".date("r")."\n";

foreach($mailto as $value) {
    mail($value,$subject,$t_data,str_replace("[to]",$value,$headers));
}

// this is for the user's email
$headers = "MIME-Version: 1.0\n".
   "Content-type: text/html; charset=iso-8859-1\n".
   "From: \"ReddingHomeHelpers.com\" <info@reddinghomehelpers.com>\n".  
   "Date: ".date("r")."\n";

mail($_POST['email'], $user_subject, $user_data,$headers);

//  Ok so now we send out confirm email.
//  Dom

header("location: thank_you.html");
?>

  mail($value,$subject,$t_data,str_replace("[to]",$value,$headers));

should be

  mail($value,$subject,$t_data,str_replace("[to]",$value),$headers);

  mail($value,$subject,$t_data,str_replace("[to]",$value),$headers);

Why no third parameter? 

oops..  nevermind.

I still don't see where "[to]" is in $headers.

thank you for the replies.. still waiting for this to be solved

So I did a port scan on relay-hosting.secureserver.net and found they have ONLY port 25 open and that must mean they are the relay agent.  You probably will need authentication credentials to connect to it.  In an ASP example I found they used the default credentials, so maybe your web server holds the credentials.  Either way you are going to have to send your mail through port 25 to relay-hosting.secureserver.net using a means other than mail().  I'd recommend worx phpSendmail or PEAR->smtp

I have been trying to get either of these working, but I do not have a web hosting that permits the traffic that these send out.  So, what you need to do is instead of using mail(), use smtp communication.

OR

check your php.ini file for

[mail function]
SMTP = smtp.domain.name
sendmail_from = somebody@domain.name

and change SMTP to

SMTP= relay-hosting.secureserver.net