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Re: Careful with those spamtools.....

2003-09-14 18:09:36
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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