more on SPAM Countermeasures Risks Digest 23.25

[Dave Farber <dave () farber net>]

As I said often on IP, I have neither the time or desire to use systems 
like this and ignore all such requests djf

Delivered-To: dfarber+ () ux13 sp cs cmu edu
Date: Sat, 06 Mar 2004 16:45:06 -0800
From: Dennis Paull <dpaull () svpal org>
Subject: Re: [IP] SPAM Countermeasures Risks Digest 23.25
X-Sender: dpaull () pop svpal org
To: dave () farber net
Cc: Scott MacQuarrie <scott () zwcx com>

Hi Dave,

For IP if you choose.

I read through the Digiportal web site and I do not see how it could be
used with lists such as IP? If Scott thinks that email list owners are
going to respond to special messages from every new subscriber, he must
be crazy.

There may be other such situations that are less apparent where the
scheme being used is inappropriate. Besides that, it looks great.

Dennis Paull
Half Moon Bay, CA

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

At 05:00 PM 3/6/2004 -0700, you wrote:
>
>Date: Tue, 02 Mar 2004 23:52:55 -0500
>From: Scott MacQuarrie <scott () zwcx com>
>Subject: SPAM Countermeasures
>
>I am surprised at some of the ideas put forward to prevent spam and feel
>many of them, such as charging for e-mail, are worse than the problem
>itself. Ultimately, this is matter of using definitions to focus on the
>actual problem, rather than trying to apply massive architectural changes to
>"carpet-bomb" the problem.
>
>By definition, spam is simply e-mail from unidentified sender(s). The
>solution is to require senders to identify themselves, either by e-mail
>address or domain before accepting their e-mail. There is no need to filter
>e-mail from people you know or domains you trust. It's strangers you need to
>watch.
>
>Anti-spam lists, such as the Blackhole list and others are following this
>strategy, but offering to act as an intermediary. The better, and simpler,
>solution is at the individual layer, using tools such as choicemail from
>Digiportal. (Note: I am simply a satisfied customer and, in no way represent
>the company). This tool filters e-mail, based on if I allowed them or their
>domain to e-mail me. If you are not know, you are sent an e-mail asking who
>you are. The response (via digiportal's website - a trusted URL) is sent to
>me and I can decide if I want to receive it. If you never respond, your
>e-mail is quietly deleted. For mailing lists, such as this one, I can
>authorize the domain or the individual e-mail address in advance.  During
>the installation, It also happily reads my address file and adds anyone
>found there to the authorized list (since I obviously know them).
>
>After using this tool for almost a year, I have enjoyed a spam-free
>existence. This has also not required a significant architectural change or
>additional billing models to implement. This is simply the implementation of
>the same process used if you ring my doorbell. If I don't know you, I may
>not answer it.
>
>Of course, I still have the bandwidth of the e-mail being sent, but this is
>my ISP's problem, not mine.
>
>Scott MacQuarrie, ZWCX Computer Corp.
>
>-------------------------------------

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