Id did this:
// try to log in
if ($_action=='login' && $_task=='mail')
{
$host = rcmail_autoselect_host();
// check if client supports cookies
//if (empty($_COOKIE))
//{
//show_message("cookiesdisabled", 'warning');
//}
//else
if (isset($_POST['_user']) && isset($_POST['_pass']) &&
rcmail_login(get_input_value('_user', RCUBE_INPUT_POST),
get_input_value('_pass', RCUBE_INPUT_POST, true, 'ISO-8859-1'), $host))
{
// send redirect
header("Location: $COMM_PATH");
exit;
}
else
{
show_message("loginfailed", 'warning');
$_SESSION['user_id'] = '';
}
}
Now works perfect but it doesn't check for the cookie! I think that is not something which is needed!