klikyháky v emailu místo diakritiky

<?php
/* *************** diskuse.jakpsatweb.cz *** PHP FAQ ********************** */
function autoUTF($s)
{
    if (preg_match('#[\x80-\x{1FF}\x{2000}-\x{3FFF}]#u', $s)) // detect UTF-8
    {
        return $s;
    }
    elseif (preg_match('#[\x7F-\x9F\xBC]#', $s)) // detect WINDOWS-1250
    {
        return iconv('WINDOWS-1250', 'UTF-8', $s);
    }
    else // assume ISO-8859-2
    {
        return iconv('ISO-8859-2', 'UTF-8', $s);
    }
}

function cs_mail($to, $predmet, $zprava, $head = "")
{
    $predmet = "=?utf-8?B?".base64_encode(autoUTF($predmet))."?=";
    $head .= "MIME-Version: 1.0".PHP_EOL;
    $head .= "Content-Type: text/plain; charset=\"utf-8\"".PHP_EOL;
    $head .= "Content-Transfer-Encoding: base64".PHP_EOL;
    $zprava = base64_encode(autoUTF($zprava));
    return mail($to, $predmet, $zprava, $head);
}

  $to = "TanderZz@email.cz";
  $mess = 'ěščřžýáíé46';
  $text = "Test, \r\n ěščřžýáíé123456789";

if (cs_mail($mess, $text, $to.PHP_EOL))
{
    echo 'E-mail byl úspěšně odeslán.<br>';
}
else
{
    echo 'E-mail se bohužel nepodařilo odeslat.<br>';
}
  
  $to = "TanderZz@email.cz";  
  $email = $_POST['email']; 
  $jmeno = $_POST['jmeno'];
  $web = $_POST['web'];
  $text = $_POST['text'];
  $zs = $_POST['zs'];
  $sluzby = $_POST['sluzby'];
 
  
  Switch ($sluzby)

  {

  case 2:
  
  if ($sluzby == 2) { $selected = "CZ 50"; }
  
  break;
  
  case 3:
  
  if ($sluzby == 3) { $selected = "CZ 100"; }
  
  break;

  case 4:
  
  if ($sluzby == 4) { $selected = "CZ 150"; }
  
  break;
  
  case 5:
  
  if ($sluzby == 5) { $selected = "CZ 200"; }
  
  break;
  
  case 6:
  
  if ($sluzby == 6) { $selected = "CZ 300"; }
  
  break;
  
  case 7:
  
  if ($sluzby == 7) { $selected = "SK 40"; }
  
  break;
  
  case 8:
  
  if ($sluzby == 8) { $selected = "SK 80"; }
  
  break;
  
  case 9:
                                      
  if ($sluzby == 9) { $selected = "PREMIUM"; }
  
  else
  
  { break; }

  default:
  
  $selected = "Vybrat";

  }

  $text = $_POST['text']; 
  $subject = $_POST['subject'] = "TOPinKa ... Katalogy";
  $mess = $_POST['mess'] = " Jméno:                          " .$jmeno.                "\n      
  E-mail:                         " .$email.             "\n
  Webová stránka:                           " .$web.              "\n
  Vybraný dotaz:                   " .$selected.          "\n
  Text:                           " .$text.              "\n
 
                           ";
  
  mail($to, $subject, $mess); 


?>