@ -1473,7 +1473,7 @@ function rcmail_send_mdn($uid)
$recipient = array_shift($IMAP->decode_address_list($message['headers']->mdn_to));
$mailto = $recipient['mailto'];
$compose = new rc_mail_mime(rcmail_header_delm());
$compose = new rcube_mail_mime(rcmail_header_delm());
$compose->setParam(array(
'text_encoding' => 'quoted-printable',
'html_encoding' => 'quoted-printable',