Bill Cole <asrg(_at_)billmail(_dot_)scconsult(_dot_)com>:
At 11:05 PM -0500 11/29/03, Eric S. Raymond wrote:
This is is a viable approach because there are so many fewer semding
servers (concentrated at ISPs) than receiving servers.
What is your basis for this?
Well, for starters, the fact that people connected to AOL (which, last
I read, was still about 1/3rd of Internet users even America) never
originate their own SMTP transactions. Also true of most Yahoo users
and most Speakeasy users.
There are far more non-ISP servers (sending and receiving servers)
than there are ISP servers. ISP's carry the most volume and have the
most users, but in a head count of machines intentionally and
actively running MTA's, they hold a minority.
You may be right -- but even if you are, what I was really arguing is that is
we have a choice between technology that requires us to fix all the
world's senders and technology that requires us to fix all the world's
receivers, fixing *senders* is a much easier deployment problem.
--
<a href="http://www.catb.org/~esr/";>Eric S. Raymond</a>
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