OOOOOOHHHHH yeah! I didn't know that! Are we sure this is actually what it means and not just a miss-syntaxed paragraph? It actually resolves the IP against the RBL lookup?
If so....well then...problem solved, and devs get a cookie :)
Actually, upon closer read it checks the IP of the NS record.. So it's essentially blacklisting the IP's of the DNS servers that spammers are using.
So, for http://www.merchantsoverseas.com, it would look at your NS records:
MerchantsOverseas.com. 18185 IN NS auth20.ns.wcom.com.
MerchantsOverseas.com. 18185 IN NS auth10.ns.wcom.com.And would check the IPs 198.6.100.37 (auth20.ns.wcom.com) and 198.6.100.21 (auth10.ns.wcom.com)
