I change file index.php and now working and i can login accounts with two server but i don't know this solution is security?
$auth = $RCMAIL->plugins->exec_hook('authenticate', array(
'host' => $RCMAIL->autoselect_host(),
'host2' => $RCMAIL->autoselect_host(),
'user' => trim(rcube_utils::get_input_value('_user', rcube_utils::INPUT_POST)),
'pass' => rcube_utils::get_input_value('_pass', rcube_utils::INPUT_POST, true, $pass_charset),
'valid' => $request_valid,
'cookiecheck' => true,
));
$auth['host'] = 'ssl://mail.name.com';
$auth['host2'] = 'ssl://mail.name2.com';
// Login
if ($auth['valid'] && !$auth['abort']
&& $RCMAIL->login($auth['user'], $auth['pass'], $auth['host'], $auth['cookiecheck']) || $RCMAIL->login($auth['user'], $auth['pass'], $auth['host2'], $auth['cookiecheck'])
)