[SURBL-Discuss] newly registered domains

Chris Santerre csanterre at MerchantsOverseas.com
Mon May 9 15:34:46 CEST 2005

>-----Original Message-----
>From: Matthew Wilson [mailto:matthew at boomer.com]
>Sent: Sunday, May 08, 2005 9:29 PM
>To: Jeff Chan; SURBL Discussion list
>Subject: [SURBL-Discuss] newly registered domains
>Does anyone know of a SA rule to check how recently a domain name has
>been registered?  
>The various uri lookups catch the vast majority of spammy urls during
>the day, but from 2-5 a.m. CST, my servers get hit with tons of spam
>with urls that aren't in SURBL yet.  All of the domains are newly
>registered domains (registered in the past week or so).  
>I know that the SARE ninjas have some private tools to do this kind of
>lookup for their feeds and manual lookups, but I'm wondering if this
>kind of thing could be worked directly into a SA rule.

Well this has been brought up before. It is a very good idea, however
difficult to implement. Unfortunetly the date returned by a whois querey
comes in a wide variety of flavors. We (SARE) thought we had all of the
returned date codes figured out. Nope. New ones still keep coming. 

uribl.com has some ideas on how to attack this very issue, but not sure it
is worth it yet. 

In short, it would be wonderful to start doing whois lookups for every
domain in an email. Lots of things could be flagged off of it. Think of a
sort of baysien whois DB. But the traffic would be pretty dam big. 


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