PBL

From DWIKI

Policy Block List

HOWTO

Check if listed on spamhaus

Use reverse/ptr:

host 4.3.2.1.zen.spamhaus.org

NXDOMAIN means not list

FAQ

False positive: listed in (zen.spamhaus.org<-127.255.255.254)

dig whoami.lua.powerdns.org TXT

should return your resolver's IP. In my case i had bind using forwarders causing this problem.