protected function sendMails($res)
 {
     global $ilAccess, $ilDB, $lng;
     static $cache = array();
     static $attachments_cache = array();
     include_once 'Modules/Forum/classes/class.ilObjForum.php';
     include_once 'Services/Mail/classes/class.ilMail.php';
     include_once 'Services/User/classes/class.ilObjUser.php';
     include_once 'Services/Language/classes/class.ilLanguage.php';
     $forumObj = new ilObjForum();
     $frm = $forumObj->Forum;
     $numRows = 0;
     $mail_obj = new ilMail(ANONYMOUS_USER_ID);
     $mail_obj->enableSOAP(false);
     while ($row = $ilDB->fetchAssoc($res)) {
         // don not send a notification to the post author
         if ($row['pos_display_user_id'] != $row['user_id']) {
             // GET AUTHOR OF NEW POST
             if ($row['pos_display_user_id']) {
                 $row['pos_usr_name'] = ilObjUser::_lookupLogin($row['pos_display_user_id']);
             } else {
                 if (strlen($row['pos_usr_alias'])) {
                     $row['pos_usr_name'] = $row['pos_usr_alias'] . ' (' . $lng->txt('frm_pseudonym') . ')';
                 }
             }
             if ($row['pos_usr_name'] == '') {
                 $row['pos_usr_name'] = $lng->txt('forums_anonymous');
             }
             // get all references of obj_id
             if (!isset($cache[$row['obj_id']])) {
                 $cache[$row['obj_id']] = ilObject::_getAllReferences($row['obj_id']);
             }
             // check for attachments
             $has_attachments = false;
             if (!isset($attachments_cache[$row['obj_id']][$row['pos_pk']])) {
                 $fileDataForum = new ilFileDataForum($row['obj_id'], $row['pos_pk']);
                 $filesOfPost = $fileDataForum->getFilesOfPost();
                 foreach ($filesOfPost as $attachment) {
                     $attachments_cache[$row['obj_id']][$row['pos_pk']][] = $attachment['name'];
                     $has_attachments = true;
                 }
             } else {
                 $has_attachments = true;
             }
             // do rbac check before sending notification
             $send_mail = false;
             foreach ((array) $cache[$row['obj_id']] as $ref_id) {
                 if ($ilAccess->checkAccessOfUser($row['user_id'], 'read', '', $ref_id)) {
                     $row['ref_id'] = $ref_id;
                     $send_mail = true;
                     break;
                 }
             }
             $attached_files = array();
             if ($has_attachments == true) {
                 $attached_files = $attachments_cache[$row['obj_id']][$row['pos_pk']];
             }
             if ($send_mail) {
                 $frm->setLanguage(ilForum::_getLanguageInstanceByUsrId($row['user_id']));
                 $mail_obj->sendMail(ilObjUser::_lookupLogin($row['user_id']), '', '', $frm->formatNotificationSubject($row), $frm->formatNotification($row, 1, $attached_files, $row['user_id']), array(), array('normal'));
                 $numRows++;
             }
         }
     }
     return $numRows;
 }