[Pr0Head]

В mail1.php надо исправить:

<form action="<? echo $PHP_SELF ?>" method=get>
<input type=text name=subj value="! ! !">
<input type=hidden name=address value="<? echo $address ?>">
<input type=hidden name=msg value="<? echo $msg ?>">
<input type=submit value="send again">