php - Mail Function was not working

Mail function was not working, but i am getting success message,but mail was not sent My code is following ,but this code working fine on another one server i can't identify the problem any solution for in this problem.........?

    include("conn.php");

if(isset($_REQUEST["mmailid"]))

{
     $to=$_REQUEST["mmailid"];
$rs=mysql_query("select mmailid,mpass,mname from memtb where mmailid='$to'");

  $rd1=mysql_num_rows($rs);
    if($rd1>0)
    {
        $rd=mysql_fetch_array($rs);
             $headers = "MIME-Version: 1.0" . "\r\n";
             $headers .= "Content-type:text/html;charset=iso-8859-1" . "\r\n";

             $headers .= 'Bcc: itstephen34@gmail.com' . "\r\n";


        $body="
Dear " . $rd[2] . ",
     Your Password is : " . $rd[1] . " .
" . "
 
SUPPORT Team
CHANDRASTORE
";

         ini_set("SMTP","localhost");
         ini_set("sendmail_from","info@stephenraj.in");

        $mail=mail($to,"Stephen Password Recovery  MAIL",$body,$headers);
        //mail($tomailid,"Stephen Registration Confirmation MAIL",$body,$headers);

        if(isset($mail))
        {
        echo "Your Password Was Sent To Your Mail";
        // echo $rd[2].$rd[1];
        }
    }
    else
        echo 'Invalid Mail ID'
}



?>

Answer

check with your hosting server..when ever we write a mail it will send through from our server first if your server to another doesn't have privilege or fire wall wont send.so check with your server hosting once