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List:       exim-users
Subject:    Re: [exim] Sign-key solution for backscatter-spam?
From:       Johann Spies <jspies () sun ! ac ! za>
Date:       2007-08-28 14:20:47
Message-ID: 20070828142047.GE14845 () sun ! ac ! za
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On Tue, Aug 28, 2007 at 12:17:54PM +0200, Renaud Allard wrote:
> 
> 
> Johann Spies wrote:
> > I don't want to use SPF and don't want to start a flame war on it
> > (again) but I want to stop backscatter-spam.
> > 
> > I came across a document
> > (http://psg.com/%7Ebrian/software/authbounce/configure-authbounce.txt)
> > using an acl: check_bounce_key to counter the problem of
> > backscatter-spam. 
> > 
> > The theory makes sense to me.  
> > Are any of you using this technique?
> > What are the pitfalls?
> > Would you recommend it?
> > 
> 
> I think this one:
> http://www.slett.net/spam-filtering-for-mx/exim-sign.html
> is a safer bet, because the one you quoted requires remote MTA to comply with
> some rules.
> I use this technique on about 25 servers and nearly never had a problem.

Thanks.  I will read further.

Regards
Johann
-- 
Johann Spies          Telefoon: 021-808 4036
Informasietegnologie, Universiteit van Stellenbosch

     "Use hospitality one to another without grudging."     
                                   I Peter 4:9 

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