[Mimedefang] Catching the porn spams

Keith Patton kpatton at dallas.photronics.com
Thu Sep 9 13:54:40 EDT 2004


Maybe we need to think a little outside the box.  Porn spam's objective 
is to get you to go to their website, subscribe etc.
Now maybe we need to search the body for web links then match them 
against a blacklist.

just a thought,
-Keith


Kevin A. McGrail wrote:

>There are certainly ways to code around this and it *might* be a very valid
>way to stop spammers.  I'll leave that debate to continue.
>
>However, my point was just to make sure that some admins didn't go code up a
>whois lookup that was automated and find themselves in violation of the
>whois rules against automation.  Most of the whois servers will notice
>automated lookups of X number in Y period of time and just eventually block
>your access. Then you'll get every domain as unknown and start blocking all
>mail ;-)
>
>Regards,
>KAM
>
>  
>
>>Well, you could do an enhanced form of greylisting.  If mail comes
>>from an unknown domain, you greylist for 24 hours.  Otherwise, you use
>>the normal greylisting timing.  After 24 hours, the SURBLs should have
>>caught up.  This doesn't involve WHOIS lookups and is independent of
>>when the domains were registered.
>>
>>The obvious downside is a very long (probably unacceptably long) initial
>>delay for mail from a new domain. :-(
>>    
>>
>
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