problema form email

[__SUPERMAN__]

SAlve a tutti, vorrei elencare 2 problemi... ho qst 2 funzioni nella pagina users.php per la gestione delll'invio email a gli iscritti su mio sito.. ora avrei necessita di 2 cose....

1. che l'email oltre che all'utente venga inviata sempre anche al mio indirizzo email in modo da averle archiviate...
mettendo
$to = $email;
$to = "mio indirizzo";

invia solo al mio indirizzo

2. ho un problema con i caratteri speciali.. ogni volta che scrivo nel form di testo me li cambia tutti come posos fare??

function SendEmail(){
         include("header.php");
         global $db, $prefix, $email, $username, $site_name, $site_email, $site_url;
         
         nav_menu();
         
         echo "<form method=\"POST\" action=\"users.php\">
               <table align=\"center\" border=\"0\" width=\"500\" cellpadding=\"2\">
        <tr>
            <td colspan=\"2\" align=\"center\">Spedisci email a ($username)</td>
        </tr>
        <tr>
            <td width=\"100\">To:</td>
            <td><input type=\"text\" name=\"email\" size=\"27\" value=\"$email\"></td>
            </tr>
            <tr>
            <td>Oggetto:</td>
            <td><input type=\"text\" name=\"subject\" size=\"27\" value=\"\"></td>
        </tr>
        <tr>
            <td valign=\"top\">Messaggio:</td>
            <td>Salve $username,

                            <textarea rows=\"20\" name=\"msg\" cols=\"80\">Testoooo
</textarea>
                            

                            ---------------------
                            

                            $site_name

                            $site_url
                            
                        </td>
        </tr>
        <tr>
            <td></td>
            <td><input type=\"hidden\" name=\"action\" value=\"do_SendEmail\">
                            <input type=\"submit\" value=\"INVIA\"></td>
        </tr>
     </table>";
         
         include("footer.php");
}
function do_SendEmail(){
         global $email, $username, $subject, $msg, $site_name, $site_email, $site_url;

         $message = "Salve $username,\n\n";
         $message .= "$msg\n\n\n\n";
         $message .= "-----------------------\n";
         $message .= "$site_name\n";
         $message .= "$site_url\n";
         
         $to = $email;
     $to = "mio indirizzo";
         $header = "From: $site_name <$site_email>\n";
         $header .= "Reply-To: $site_email\n\n";

         if(mail($to, $subject, $message, $header)){

                msg_redirect("".LOGIN." ".EFFETTUATO." ".CON." ".SUCCESSO."","users.php","5");

         }else{
               echo "<h3>"
                    ."<font color=\"#FF0000\">An error occurred while sending the email.
"
                    ."</font>You can try:
"
                    ."1- Check the email is correct.
"
                    ."2- Call your hosting provider to allow the function mail(); to send E-mails.
"
                    ."3- If your running the script on localhost (on your pc) you have to:
"
                    ."a: edit php.ini file. Click on (Start) menu then chose (Run) type in (php.ini) and hit Enter.
"
                    ."b: Look for: 
"
                    ."------------------
"
                    ."[mail function]
"
                    ."; For Win32 only.
"
                    ."SMTP = localhost
"
                    ."-------------------
"
                    ."replace with:
"
                    ."-------------------
"
                    ."[mail function]
"
                    ."; For Win32 only.
"
                    ."SMTP = mail.palnet.com
"
                    ."SMTP_PORT = 25
"
                    ."-------------------
"
                    ."you can change mail.palnet.com to any local email provide. we just need there mail server";
         }

}