@ -773,7 +773,7 @@ class rcube_imap
function _fetch_headers($mailbox, $msgs, &$a_msg_headers, $cache_key)
{
// fetch reqested headers from server
$a_header_index = iil_C_FetchHeaders($this->conn, $mailbox, $msgs, false, $this->fetch_add_headers);
$a_header_index = iil_C_FetchHeaders($this->conn, $mailbox, $msgs, false, false, $this->fetch_add_headers);
if (!empty($a_header_index))