Sender domains are analyzed and if confirmed to be not spoofed, are listed into dbl.abuse.ro list
Spamvertized domains (including those indirectly linked through services like bit.ly) are listed into uribl.abuse.ro list
http://dronebl.org/
- http://mailspike.net/usage.html
+ usage policy is clear: free for whatever
+ listing policy is not quite so clear
+ can be mostly inferred from the classes but not entirely clear IMHO
+ has an IRC channel
+ return codes
+ not explicitly mentioned but it’s 127.0.0.X where X is the class from https://dronebl.org/classes
http://psbl.org/
query zone: psbl.surriel.com
+ no usage policy, but seems implied that usage is free
+ listing policy
+ no explicit, complete policy given but sending to spamtraps is mentioned to get you listed and seems the exclusive mechanism
+ return codes
+ not documented, probably only boolean
http://rbl.dns-servicios.com/rbl.php
http://rbl.schulte.org/
http://rbldata.interserver.net/
http://www.justspam.org/
http://www.kempt.net/dnsbl/
http://www.leadmon.net/spamguard/
- http://www.rbl.jp/allrbl-e.html
http://www.spamcop.net/
good policy
good reputation
sensible policy
http://www.srntools.com/blacklist/
http://www.uceprotect.net/en/index.php
- http://www.usenix.org.uk/content/rbl.html
- http://zapbl.net/
https://bl.konstant.no/
https://choon.net/rbl.php
- https://puck.nether.net/or/
- might be good
- https://rbl.foobar.hu/
https://www.abuse.ch/
https://www.abuse.ch/?tag=httpbl
https://www.kisarbl.or.kr/
https://www.team-cymru.org/Services/Bogons/dns.html
http://mailspike.net/usage.html
reputation-based
- http://www.spamhauswhitelist.com/en/
- policies for listing and usage on the website
http://www.whitelisted.org/
paid subscription
policy on site
https://puck.nether.net/or/
policies on website
- https://rbl.foobar.hu/
- usage and listing policies on website
http://www.isipp.com/email-accreditation/iadb-query-instruction/
requires signup
- https://choon.net/rbl.php
not quite a usage policy, but seems ok
strange split of ipv4 and ipv6
seems dead?
- https://www.dnswl.org/