On Mon, 15 Sep 2003 08:21:00 +0800, Shelby Moore said: > Then again such a hypothetical database would be mostly useless in > implementation, because dishonest proxies come and go faster than we could > database them. Could test in real-time, but tests can be lied to. There's an even bigger problem - you have to make the difficult choice between: 1) Flag the DMZ mail server of every site that uses RFC1918 space, since the "previous hop" is in their 1918 space. This won't win you friends.... 2) Allow a "pass" for 1918 space, and just accept that spammers will use a dummy RFC1918 network (of possibly 1 node looped back to itself) to "look like" (1).
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