php newsletter script duplicating body content

just done a little bit of code to send out a newsletter based on a sql table.

first one with 70/80 subscribers went off fine, now when i've moved to the second one that has around 250, the body_message of the email is repeated inside the email equally to the number of people on the mailing list, in this case I was sending emails with 250 duplicates of the content inside...

not sure whats wrong with the code, have stripped it down as much as i could and was wondering if someone could talk a look and hopefully point out the issue

    <?php

$i=1;
if (isset($_POST['submit_btn'])) {
connect_newsletter();

$result = mysql_query("SELECT id, mail FROM test") or die('Could not connect. ' . mysql_error());

while ($row = mysql_fetch_array($result)) {

    $email = $row['mail'];
    $nid = $row['id'];

    $ip=$_SERVER['REMOTE_ADDR']; 

    $ref="http://www.domain.co.uk";

    $body_message ='newsletter html code';

    $y_email="noreply@domain.co.uk";
    $headers  = 'MIME-Version: 1.0' . "\r\n";
    $headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
    $headers4=$y_email;       
    $headers .="Reply-to: $headers4\n";
    $headers .= "From: $headers4\n"; 
    $headers .= "Errors-to: $headers4\n"; 

    $subject="subject";

    mail($email,$subject,$body_message,$headers);


    echo $i." sent to ".$email; 
 开发者_开发技巧   echo "<br>";
    $i++;
}
}

?>

---

Watching your code that is not possibile because in the loop you safely reset the value of $body and $subject

The problem could be somewhere else. Check your sendmail log