foreach ($boxesall as $box) {
if (substr($box[$p], 0, $l) == $old_name . $delimiter) {
$new_sub = $new_name . $delimiter . substr($box[$p], $l);
if ($imap_server_type == 'cyrus') {
foreach ($boxesall as $box) {
if (substr($box[$p], 0, $l) == $old_name . $delimiter) {
$new_sub = $new_name . $delimiter . substr($box[$p], $l);
if ($imap_server_type == 'cyrus') {