This feature enables managed services to consult an RBL service via DNS or DoH in order to allow or deny an IP address originating from the Internet world.
This feature is also compatible with the RBL/DNSBL Artica reputation server that you can install on your network.
You can use any RBL/DNSBL system available on the Internet.
But above all, you can use an Artica server that supports the Artica reputation system (also available in Community Edition).
See this section to find out how to build an Artica RBL server OnPremice mode.