[exim] Sign-key solution for backscatter-spam?

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Συντάκτης: Johann Spies
Ημερομηνία:  
Προς: exim-users
Αντικείμενο: [exim] Sign-key solution for backscatter-spam?
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?

Regards
Johann

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


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