Problema con la mail di invio password

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<?php /***** Fase 3 *****/
if ($_POST['fase']==3){

if ((gdrcd_filter('num',$_POST['car0'])+gdrcd_filter('num',$_POST['car1'])+gdrcd_filter('num',$_POST['car2'])+gdrcd_filter('num',$_POST['car3'])+gdrcd_filter('num',$_POST['car4'])+gdrcd_filter('num',$_POST['car5']))!=$PARAMETERS['settings']['cars_sum']){
echo '<div class="error">'.gdrcd_filter('out',$MESSAGE['register']['fields']['stats_info'].' '.$PARAMETERS['settings']['cars_sum']).'</div>';
} else {

$pass=gdrcd_genera_pass();


/** * Se deve scattare l'avviso di cambio password fin dall'iscrizione non segno cambiamenti
* @author Blancks
*/
$lastpasschange_field = "";
$lastpasschange_value = "";

/** * Se NON deve scattare l'avviso di cambio password fin dall'iscrizione aggiorno la data di ultimo cambio ad ora
* @author Blancks
*/
if ($PARAMETERS['mode']['alert_password_change']=='ON' && $PARAMETERS['settings']['alert_password_change']['alert_from_signup']=='OFF')
{
$lastpasschange_field = ", ultimo_cambiopass";
$lastpasschange_value = ", NOW()";
}


gdrcd_query("INSERT INTO personaggio (nome, cognome, pass, data_iscrizione, email, sesso, id_razza, car0, car1, car2, car3, car4, car5, salute, salute_max, soldi, esperienza $lastpasschange_field) VALUES ('".gdrcd_capital_letter(gdrcd_filter('in',$_POST['nome']))."', '".gdrcd_filter('in',$_POST['cognome'])."', '".gdrcd_encript($pass)."', NOW(), '".gdrcd_filter('in',$_POST['email'])."', '".gdrcd_filter('in',$_POST['genere'])."', ".gdrcd_filter('num',$_POST['razza']).", ".gdrcd_filter('num',$_POST['car0']).", ".gdrcd_filter('num',$_POST['car1']).", ".gdrcd_filter('num',$_POST['car2']).", ".gdrcd_filter('num',$_POST['car3']).", ".gdrcd_filter('num',$_POST['car4']).", ".gdrcd_filter('num',$_POST['car5']).", ". gdrcd_filter('num',$PARAMETERS['settings']['max_hp']).", ".gdrcd_filter('num',$PARAMETERS['settings']['max_hp']).", ".gdrcd_filter('num',$PARAMETERS['settings']['first_money']).", ".gdrcd_filter('num',$PARAMETERS['settings']['first_px'])." $lastpasschange_value)");


if($PARAMETERS['mode']['emailconfirmation']=='ON')
{
echo '<div class="page_title"><h2>'.gdrcd_filter('out',$MESSAGE['register']['welcome']['message']['ok']).'</h2></div>';
echo '<div class="panels_box"><div class="welcome_message">'.gdrcd_filter('out',$MESSAGE['register']['welcome']['message'][0]).' <b>'.gdrcd_filter('out',$PARAMETERS['info']['site_name']).'</b> '.gdrcd_filter('out',$MESSAGE['register']['welcome']['message'][1]).'</div><div class="welcome_message"> </div><div class="username">'.gdrcd_filter('out',$MESSAGE['register']['welcome']['message'][3]).' <b>'.gdrcd_filter('get',$_POST['email']).'</b></div>';

$text= $MESSAGE['register']['welcome']['message'][0].' '.$PARAMETERS['info']['site_name']."\n\n ". $MESSAGE['register']['welcome']['message'][1]."\n ". $MESSAGE['register']['welcome']['message'][2] ."\n\n ". $MESSAGE['register']['welcome']['message']['user'].' '.gdrcd_filter('get',$_POST['nome'])."\n". $MESSAGE['register']['welcome']['message']['pass'] .' '.$pass."\n\n ". $PARAMETERS['info']['webmaster_name'];

$subject = $PARAMETERS['info']['site_name'].' - Registrazione di '.gdrcd_filter('get',$_POST['nome']).' '.gdrcd_filter('get',$_POST['cognome']);

mail(gdrcd_filter('get',$_POST['email']), $subject, $text, 'From: '.gdrcd_filter('out',$PARAMETERS['info']['webmaster_email']));


} else {

echo '<div class="page_title"><h2>'.gdrcd_filter('out',$MESSAGE['register']['welcome']['message']['ok']).'</h2></div>';
echo '<div class="panels_box"><div class="welcome_message">'.gdrcd_filter('out',$MESSAGE['register']['welcome']['message'][0]).' <b>'.gdrcd_filter('out',$PARAMETERS['info']['site_name']).'</b> '.gdrcd_filter('out',$MESSAGE['register']['welcome']['message'][1]).'</div><div class="welcome_message">'.gdrcd_filter('out',$MESSAGE['register']['welcome']['message'][2]).'</div><div class="username">'.gdrcd_filter('out',$MESSAGE['register']['welcome']['message']['user']).' <b>'.gdrcd_filter('get',$_POST['nome']).'</b></div><div class="username">'.gdrcd_filter('out',$MESSAGE['register']['welcome']['message']['pass']).' <b>'.$pass.'</b></div></div>';

}

gdrcd_query("INSERT INTO messaggi (mittente, destinatario, spedito, testo) VALUES ('".gdrcd_filter('out',$PARAMETERS['info']['webmaster_name'])."', '".gdrcd_filter('get',$_POST['nome'])."', NOW(), '".gdrcd_filter('out',$MESSAGE['register']['welcome']['message'][4])."')");

}//else

?>


<!-- welcome message -->
<!-- random pass -->
<!-- invio mail -->
<!-- inserimento -->

</div>

<!-- Torna alla home -->
<div class="link_back">
<a href="index.php">
<?php echo gdrcd_filter('out',$MESSAGE['register']['welcome']['back'].' '.gdrcd_filter('out',strtolower($PARAMETERS['info']['homepage_name']))); ?>
</a>
</div>


<?php } ?>




<!-- Chiudura finestra iscizione -->
</div>
</div>