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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