From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.emacs.gnus.general/45992 Path: main.gmane.org!not-for-mail From: Stainless Steel Rat Newsgroups: gmane.emacs.gnus.general Subject: Re: hashcash (was Re: new spam functionality added) Date: Sun, 04 Aug 2002 02:55:18 -0400 Organization: The Happy Fun Ball Brigade Sender: owner-ding@hpc.uh.edu Message-ID: References: <87y9brejam.fsf@mail.paradoxical.net> <873ctztyth.fsf@mail.paradoxical.net> <02Jul31.171132edt.119710@gateway.intersystems.com> <87fzxzsit2.fsf@mail.paradoxical.net> <87ofck96ic.fsf@deneb.enyo.de> NNTP-Posting-Host: localhost.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: main.gmane.org 1028444177 13571 127.0.0.1 (4 Aug 2002 06:56:17 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Sun, 4 Aug 2002 06:56:17 +0000 (UTC) Return-path: Original-Received: from malifon.math.uh.edu ([129.7.128.13]) by main.gmane.org with esmtp (Exim 3.33 #1 (Debian)) id 17bFJH-0003Wl-00 for ; Sun, 04 Aug 2002 08:56:16 +0200 Original-Received: from sina.hpc.uh.edu ([129.7.128.10] ident=lists) by malifon.math.uh.edu with esmtp (Exim 3.20 #1) id 17bFIr-0007ur-00; Sun, 04 Aug 2002 01:55:49 -0500 Original-Received: by sina.hpc.uh.edu (TLB v0.09a (1.20 tibbs 1996/10/09 22:03:07)); Sun, 04 Aug 2002 01:56:14 -0500 (CDT) Original-Received: from sclp3.sclp.com (qmailr@sclp3.sclp.com [209.196.61.66]) by sina.hpc.uh.edu (8.9.3/8.9.3) with SMTP id BAA18093 for ; Sun, 4 Aug 2002 01:55:57 -0500 (CDT) Original-Received: (qmail 11317 invoked by alias); 4 Aug 2002 06:55:25 -0000 Original-Received: (qmail 11312 invoked from network); 4 Aug 2002 06:55:25 -0000 Original-Received: from h0060978d8c91.ne.client2.attbi.com (HELO peorth.gweep.net) (rlocek@24.218.202.161) by gnus.org with SMTP; 4 Aug 2002 06:55:25 -0000 Original-Received: (from ratinox@localhost) by peorth.gweep.net (8.11.6/8.11.6) id g746tIK09978; Sun, 4 Aug 2002 02:55:18 -0400 Original-To: "(ding)" X-Attribution: Rat In-Reply-To: (Simon Josefsson's message of "Sat, 03 Aug 2002 18:01:57 +0200") Original-Lines: 31 User-Agent: Gnus/5.090006 (Oort Gnus v0.06) XEmacs/21.1 (Cuyahoga Valley, i686-pc-linux) Precedence: list X-Majordomo: 1.94.jlt7 Xref: main.gmane.org gmane.emacs.gnus.general:45992 X-Report-Spam: http://spam.gmane.org/gmane.emacs.gnus.general:45992 * Simon Josefsson on Sat, 03 Aug 2002 | My MTA could refuse to receive mail without X-Hashcash. Same level as | "real" hashcash gives. That is not the same thing as forcing the sender to use it. That is nothing more than rejecting mail based on an abstract black list. | In the same way MIME and SMTP is nontransparent -- the MUA will have | to support it. I don't grok how this is a big problem. They are transparent to the user. | How do you differentiate between trusted sources and spamhauses? This | sounds like lots of configuration work and maintainance. Hardly. Scoring can be based on a variety of criteria, ranging from volume to votes from users. Different sites will require different criteria, but there is no reason why they cannot be automated. | It isn't difficult to fake the source. It is difficult to fake your IP, and there are relatively simple ways of detecting such attempts. -- Rat \ When not in use, Happy Fun Ball should be Minion of Nathan - Nathan says Hi! \ returned to its special container and PGP Key: at a key server near you! \ kept under refrigeration. That and five bucks will get you a small coffee at Starbucks.