Re: Why don't we all just end email viruses for good?
From: Barry Margolin (barmar_at_alum.mit.edu)
Date: 07/29/04
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Date: Wed, 28 Jul 2004 19:02:20 -0400
In article <410771a8.14661015@news.clear.net.nz>,
john.elsbury@spamaway.clear.net.nz (John Elsbury) wrote:
> What you are proposing doesn't fit with the POP protocol which most
> home users use - this is because in the POP regime your ISP has
> already accepted the e-mail from the sending MTA (in this case,
> usually a trojaned PC) and is just holding it for you until you
> connect and collect it. Setting a flag, therefore, can only be done
> "on your behalf" at the ISP level (a flag set in your mail client
> can't have any effect) and even if there was such a flag the sending
> MTA (trojan) would probably ignore it. Your approach implies that
> ISPs are going to have to maintain databases containing individual
> user preferences and filter mail accordingly. This would be very
> expensive and very risky for the ISP.
Many ISPs already offer optional spam blocking on a per-user basis.
Adding an option regarding executable content seems like it would be a
simple addition to this facility.
-- Barry Margolin, barmar@alum.mit.edu Arlington, MA *** PLEASE post questions in newsgroups, not directly to me ***
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