RFC 6471 and "listing the Internet" as a punishment

It was nice to see the RFC being published. Good work.

Then I came across this:

http://blog.vamsoft.com/2012/01/24/ub-black-uribl-com-url-blacklist-started-to-block-everything/

(Vamsoft ORF is a spam-filter.) Basically uribl.com was returning 127.0.0.1 to _all_ queries from nameservers that are sending high volumes (presumably without paying for it) as some kind of punishment. http://uribl.com/ confirms that.

Now, as Vamsoft mentions, it is not a good idea to use third-party nameservers on a server you're making DNS requests from. (Although, unlike openDNS, Google's nameservers do return NXDOMAIN when they can't resolve a domain.) Moreover, it does seem Google's nameservers are now getting REFUSED as a response to any uribl.com request. I was just wondering whether the RFC says anything about this kind of behaviour ('listing' everything as a punishment). To my reading it doesn't.

Martijn.

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