Watermarking marking good mail as SPAM?

[Andreas Kasenides]

I should have said that I am running MS:
Linux xxxx.cs.ucy.ac.cy 2.6.18-53.1.21.el5 #1 SMP Tue May 20 09:35:07 
EDT 2008 x86_64 x86_64 x86_64 GNU/Linux
This is CentOS release 5 (Final)
This is Perl version 5.008008 (5.8.8)
This is MailScanner version 4.71.10

Andreas Kasenides wrote:
> Hi everybody. MailScanner is a great community.
>
> I am suspecting that the watermarking feature is making some messages
> as spam when it should not. Here is part of a header from a message 
> that was
> marked as spam.
>
> Subject:
> Re: [Spam] TACAS09
> ............
> Message-ID:<4ABB3634864C at mac.com>
> In-reply-to:<1020801 at cs.ucy.ac.cy>
> References:<3D1A89EADBC at mac.com> <48CC0FDE.1020801 at cs.ucy.ac.cy>
> X-Mailer:Apple Mail (2.928.1)
> X-CSatUCY-Information:Please contact xxxx at cs.ucy.ac.cy for help.
> X-CSatUCY-MailScanner-ID:E7309
> X-CSatUCY-VirusCheck:Found to be clean
> X-CSatUCY-SpamCheck:not spam, SpamAssassin (score=-2.599, required 5, 
> autolearn=not spam, BAYES_00 -2.60)
> X-CSatUCY-From:yyyyy at mac.com
> X-CSatUCY-Watermark:1221964537.75397 at fPhgdJd/cnrjJXq+MyJL2w
> X-Spam-Status:No
>
> If I read it correctly SA has not marked this as spam.
> But yet the Subject was appended with [SPAM] (our spam signature).
> Our watermaking options are:
>
> Use Watermarking = yes
> Add Watermark = yes
> Check Watermarks With No Sender = yes
> Treat Invalid Watermarks With No Sender as Spam = spam
> Check Watermarks To Skip Spam Checks = yes
> Watermark Secret = zzzzzzz
> Watermark Lifetime = 604800
> Watermark Header = X-%org-name%-Watermark:
>
> I have not been able to figure out when exactly this happens but it 
> seems to me that messages
> are marked as SPAM when they are replies or forwards. (Re: or Fwd in 
> the header).
> Is there any way to know when the watermarking fires marking a message 
> as spam and why?
> Any ideas are appreciated.
> Thank you.
> Andreas Kasenides
>

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