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Posted to commits@spamassassin.apache.org by sp...@incubator.apache.org on 2004/07/30 21:05:06 UTC

[SpamAssassin Wiki] Updated: BrainStorming

   Date: 2004-07-30T12:05:06
   Editor: JustinMason <jm...@jmason.org>
   Wiki: SpamAssassin Wiki
   Page: BrainStorming
   URL: http://wiki.apache.org/spamassassin/BrainStorming

   no comment

Change Log:

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@@ -6,3 +6,5 @@
 
  * doing reverse look-up of HELO, if it matches the user's domain, and forward DNS matches of that matches the IP address, then trust it - does that help? (may be helpful for extending the boundary)
  * find an IP that matches exteral MX, know it's external then (probably not as helpful for finding a boundary?)
+
+JustinMason: tried both of these before, expensive in terms of time, requires network lookups to compute trusted network boundary, also I got false negatives! (spams that were "close enough" to the MX record).   Also this algo is very similar ot spamcop's.