usage policy is not so clear but the FAQ implies that it’s just free to use for everyone
http://spameatingmonkey.com/
lists IPs
- lists domains
+ that sent backscatter
+ that sent to spamtrap
+ added by policy
+ this includes dial-up!
+ https://spameatingmonkey.com/faq/policy-based-listing
+ lists domains/URIs
+ by age
+ in spam bodies
usage policy seems clear
https://spameatingmonkey.com/faq/query-limits
listing policy seems clear