I quit even responding to them. After two or three years I’ll get sued for a very small amount. It will be some radiologist who looked over a xray who has sold his debt to some bottom feeders. I wait until I’m served then I pay it. Within six months some other bottom feeder will serve me again for the same debt. When I go to court showing it was paid I can generally get my money back from the second bottom feeder. I’ve done this three times and got paid twice. The third time cost me nothing but time. Its long drawn out and stupid but its the shit sandwich we are forced to eat to live in the Home of the fee.
Except on my networks all port 53 tcp/udp and port 853 for that matter are forwarded to my dns per firewall rules. I also block all encrypted dns as well as dns over https blocked. Its my dns or nothing. I also have a vpn and proxy blocklist that updates twice a day. PFblockerNG is effective when maintained.