+ http://dnsbl.tornevall.org/
+ https://www.tornevall.net/
+ related to https://www.fraudbl.org/
+ seems a bit unstructured and not very well documented
+ I can’t be arsed to deal with confluence slowing my browser to a halt repeatedly and it’s really hard to navigate but there seems to be some information on https://docs.tornevall.net/display/TORNEVALL/Endpoint%3A+dnsbl+-+DNSBL+v5+with+API+v3
+ seems active