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[Taler] e-postage redux

From: hellekin
Subject: [Taler] e-postage redux
Date: Wed, 20 Apr 2016 20:33:04 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.5.0

I remember a conversation where using GNU Taler as an anti-spam shield
in the line of pay-to-whitelist.  At the time it seemed obvious:
increase the price of sending email, and spam will stop.

But then I was recently pointed at http://www.taugh.com/epostage.pdf
which is a decade-ago argument against all forms of e-postage.

Some of the arguments could be technically avoided, but there's at least
one point that seriously made me doubt: how to handle Trojan horses,
that abuse the current user to send email using their (probably
white-listed) address.  A GNU Taler protection would certainly fail in
this case, unless you can convince me that this paper is outdated, and
you found a magic trick.


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