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Article: 88
From: Dave Covey
Date: 2004-09-23 13:40:44 -0400
Subject: Re: [LFN14080312] milter-spamc setup generating false

Removal...........: milters-request@milter.info?subject=remove
More information..: http://www.milter.info/#Support
--------------------------------------------------------

Hi all,
    No offense meant to those debating the issue of what the milter
should do but I think the essential part of the original post was to
request a change in the documentation to make it agree with the observed
behavior, or change the behavior to match the docs.
 - Dave Covey

>  Date: Wed, 22 Sep 2004 23:12:15 +0200
>  From: Frank Heydlauf <fh@LF.net>
>  To: milters@milter.info
>  Subject: [milters] [LFN14080312] milter-spamc setup generating false positives
>
>  Removal...........: milters-request@milter.info?subject=remove
>  More information..: http://www.milter.info/#Support
>  --------------------------------------------------------
>
>
>  Hi folx,
>
>  half a year ago we discovered a false positive problem caused by the
>  milter-spamc setup described in 
>  http://www.milter.info/milter-spamc/index.shtml
>  (formerly http://www.snert.com/Software/milter-spamc/)
>  Sadly I did not get a reaction from Anthony when I wrote him - now
>  try again using the new list he subscribed me.
>
>  ...
>  | The report headers inserted by milter-spamc are:
>  | X-Spam-Flag      Boolean "YES" or "NO" as to whether the
message is spam.
>
>
>  That causes the problem. In the default Spamassassin 
>  config the X-Spam-Flag tag is only set, when the message
>  is classified as spam - and is complete absent if the
>  message is ham.
>  This is to prevent a spammer from setting "X-Spam-Flag: no" 
>  by himself and bypass client side filters.
>  The clients (as we and probably many others do) filter for
>  the existens of X-Spam-Flag. If it's set - with "Yes" or "no" 
>  or whatever - the message is treated as spam.
>
>  Therefore I strongly encourage Anthony and the whole list
>  to change the documentation and settings to prevent other
>  milter users running into false positives.
>  TIA.
>
>
>  Best regards
>  Frank Heydlauf 
>  -- 
>     _        
>    | |____   LF.net Netzwerksysteme GmbH 
>    | |____>  Ruppmannstrasse 27       Heydlauf@LF.net
>    |____>    D-70565  Stuttgart  fon +49 711 90074-37
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+49 711 90074-33
>
>

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