[Mimedefang] Greylisting

David F. Skoll dfs at roaringpenguin.com
Thu Dec 15 08:43:05 EST 2005

Steffen Kaiser wrote:
>> help a small company server. Perhaps a distributed greylist DB? Sort
>> of like a DNSBL but with white-listing. MD could store the successful
>> entries in a zone and we could publish our zones for others to use.

> OK, how to keep the "Bad Guys" out?
> You're required to build up a trust system, then.

That's not any more or less troublesome than traditional RBLs.  In
theory, anyone can poison a traditional DNSRBL, but in practice, some
DNSRBLs are still very useful.



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