/usr/share/z-push/backend/kopano/mapi/ is in z-push-backend-kopano 2.3.8-2ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/z-push/backend/kopano/mapi/class.baseexception.php
/usr/share/z-push/backend/kopano/mapi/class.baserecurrence.php
/usr/share/z-push/backend/kopano/mapi/class.freebusypublish.php
/usr/share/z-push/backend/kopano/mapi/class.mapiexception.php
/usr/share/z-push/backend/kopano/mapi/class.meetingrequest.php
/usr/share/z-push/backend/kopano/mapi/class.recurrence.php
/usr/share/z-push/backend/kopano/mapi/class.taskrecurrence.php
/usr/share/z-push/backend/kopano/mapi/class.taskrequest.php
/usr/share/z-push/backend/kopano/mapi/mapi.util.php
/usr/share/z-push/backend/kopano/mapi/mapicode.php
/usr/share/z-push/backend/kopano/mapi/mapidefs.php
/usr/share/z-push/backend/kopano/mapi/mapiguid.php
/usr/share/z-push/backend/kopano/mapi/mapitags.php