/etc/kopano/userscripts/ is in kopano-server 8.5.5-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/etc/kopano/userscripts/companies_common.sh
/etc/kopano/userscripts/createcompany
/etc/kopano/userscripts/createcompany.d/
/etc/kopano/userscripts/createcompany.d/00createpublic
/etc/kopano/userscripts/creategroup
/etc/kopano/userscripts/creategroup.d/
/etc/kopano/userscripts/createuser
/etc/kopano/userscripts/createuser.d/
/etc/kopano/userscripts/createuser.d/00createstore
/etc/kopano/userscripts/deletecompany
/etc/kopano/userscripts/deletecompany.d/
/etc/kopano/userscripts/deletegroup
/etc/kopano/userscripts/deletegroup.d/
/etc/kopano/userscripts/deleteuser
/etc/kopano/userscripts/deleteuser.d/
/etc/kopano/userscripts/groups_common.sh
/etc/kopano/userscripts/users_common.sh