Hromadny email, cez PHP

function isValidEmail($email)
{
   $regexp1 = "^[a-z0-9_\+-]+(\.[a-z0-9_\+-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*\.([a-z]{2,4})$";
   $regexp2 = "^[a-z0-9,!#\$%&'\*\+/=\?\^_`\{\|}~-]+(\.[a-z0-9,!#\$%&'\*\+/=\?\^_`\{\|}~-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*\.([a-z]{2,})$";

   //skontroluje dovolenu dlzku jednotlivych casti emailovej adresy
   if(!ereg("^[^@]{1,64}@[^@]{1,255}$",$email)) {
      return false;
   }
   
   return (eregi($regexp1,$email) || eregi($regexp2,$email)) ? true : false;
}

    function kontrola($retazec)
    {
   if($retazec==""||(substr_count($retazec," ")==strlen($retazec)))
       return false;
   else
       return true;
    }


$from = "abc@gmail.com";
$headers  = "Content-Type: text/plain; charset=utf-8\r\n";
$headers .= "From: $from\n";
$headers .= "Reply-To: $from\n"

$message = "Dátum odoslania: " . date("d.m.Y,H:i:s") . "\r\n\n";
$message .= "TEXT správy \r\n";

$buf=mysql_query("SELECT mail FROM tabulka_s_ludmi WHERE mail IS NOT NULL ORDER by mail DESC")
   or die("!!! Chyba: ".mysql_error());
   $i = 0;
   while($buf2=mysql_fetch_array($buf))
   {
      //test emailu, ked OK, posle
      if(kontrola($buf2["mail"])) {
   
if(isValidEmail($buf2["mail"])) { @mail($buf2["mail"], "Info z webu", $message, $headers,"-f$from"); $i++; }
}

         
      
   }
   echo "<br /> Bolo poslaných $i emailov. ";