Someone from my hosting support offered me a solution. Instead of redirecting, I can put my html code down there.

PHP Code:
<?php 

$message = '';
$success = false;

foreach($_POST as $t => $v)
    $message .= $t.': '.$v."\n\n";

if( strlen($message) > 2) {
    $message = "Someone recently used the form submission. Here are the details:\n\n".$message;
    $success =  mail ( "[email protected]" , "Form Sumission" , $message );
}

?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
</head>
<body>
</body>
</html>