Yet Another Ninja wrote:
On 7/2/2008 6:05 PM, Marc Perkel wrote:
Is there an easy way to detect the registrar of a domain through DNS? For example - can I easilly figure out if an email I'm processing is hosted by GoDaddy or Tucows?

Here's what I'm thinking. I think there's some expensive and highly secure registrars out there who are the registrar of expensive domains and probably have no spam domains at all. This could be used to create white rules.

Can this be done?

you sure there are major registrars you can whitelist?

http://rss.uribl.com/nic/

Even EUrid is happily supporting pillz spammers on .eu



Not major registrars, minor ones. There's one called markmonitor.com that seems to have clients like banks and major corporations. My guess is that this is an extremely expensive registrar where security means everything and no one is going to accidentally mess with anything. The idea here is that if the registrar is this expensive and restrictive then only the good guys will be using them. At least that was what I would test if there were a way to test it. Apparently there is not.

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