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Date: Thu, 23 Sep 2004 12:24:36 -0400 (EDT)
From: Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Reply-To: cygwin AT cygwin DOT com
To: cygwin AT cygwin DOT com
Subject: Re:  PCYMTNQREAIYR, it really works.
In-Reply-To: <1757748822.20040923180916@familiehaase.de>
Message-ID: <Pine.GSO.4.61.0409231216590.12402@slinky.cs.nyu.edu>
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On Thu, 23 Sep 2004, Gerrit P. Haase wrote:

> To filter out spam at the client side is not possible...

Well, aside from an occasional simpleton who gets duped into replying to a
spam message, the main danger of spam is the mass e-mailing aspect that
ties up computer and network resources.  So I guess what you meant to say
was that client-side spam filtering is possible but useless.

> We really need some *global* rules, e.g. SPF and some other, similar
> method, to get 99% of spamservers out of the internet.

Unfortunately, spammers use more elaborate methods these days, including
worms and trojans (distributed via "pull", e.g., on web pages) to gain
"innocent" spam origin points.  So simply blocking off any server that
spam originates from will do no good without combined measures to stop
worms, etc.  It's an active research topic, but any current anti-spam
setup is at best run by heuristics, which sometimes go wrong.

However, this is now well and truly off-topic. :-)
	Igor
-- 
				http://cs.nyu.edu/~pechtcha/
      |\      _,,,---,,_		pechtcha AT cs DOT nyu DOT edu
ZZZzz /,`.-'`'    -.  ;-;;,_		igor AT watson DOT ibm DOT com
     |,4-  ) )-,_. ,\ (  `'-'		Igor Pechtchanski, Ph.D.
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

"Happiness lies in being privileged to work hard for long hours in doing
whatever you think is worth doing."  -- Dr. Jubal Harshaw

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