[70612] in North American Network Operators' Group

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Re: Barracuda Networks Spam Firewall

daemon@ATHENA.MIT.EDU (Eric A. Hall)
Thu May 20 15:46:09 2004

Date: Thu, 20 May 2004 14:45:29 -0500
From: "Eric A. Hall" <ehall@ehsco.com>
To: Rik van Riel <riel@surriel.com>
Cc: jcouzens@6o4.ca, nanog@merit.edu
In-Reply-To: <Pine.LNX.4.55L.0405201529250.14135@imladris.surriel.com>
Errors-To: owner-nanog-outgoing@merit.edu



On 5/20/2004 2:30 PM, Rik van Riel wrote:

> Different people get different spam, from different sources.

Yah, I've been advocating the use of a CIDR match-list from the beginning
for this and other reasons. Actually what you'd want is per-entry
weighting, so for me and my mailbox:

  CIDR 221.232.0.0/14 score = 3.0
  CIDR 147.28.0.0/16 score = -3.0

The ASN matching has merit too, so maybe:

  ASN 4134 score = 3.0
  CIDR <holes punched> = -3.0

etcetera

-- 
Eric A. Hall                                        http://www.ehsco.com/
Internet Core Protocols          http://www.oreilly.com/catalog/coreprot/

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