Blackholes.five-ten-sg

From Wiki.openrbl.org

[edit] Zone

blackholes.five-ten-sg.com

important not all responses indicate negative reputation

[edit] response codes

the actual ip address returned from a lookup in this blackholes zone is 127.0.0.X where X is the class number below. For example, bulk mailer ip addresses return 127.0.0.4.

1 unused
2 spam
3 dialup
4 bulk
5 "closed loop confirmed opt-in"
6 multistage
7 singlestage
8 spam-support
9 webform
10 misc
11 klez - Systems that send virus notifications (klez, sobig, etc) to the supposed sender.
12 tcpa - Systems that are owned by organizations that blatently violate the TCPA
13 free - Free mail providers.
14 cr - Systems that have delivered challenge-response spam here.