At 03:15 PM 7/7/2003 -0500, Christopher Bird wrote:
A while back (probably 2 or 3 years) there used to be an email service
called either msgto.com or mailto.com or something like that. It worked
by the following (rather clumsy, but quite effective) method.
It kept a list of people who I authenticated as legitimate mailers to me
in its address list.
Any mail from someone in that list was automatically authenticated
Any mail from someone not in that list was held in abeyance and an email
sent to the return address of that piece of mail. If the person at\the
other end confirmed that they did indeed send it, then the mail was
forwarded to me and placed in a quarantine box for my approval
(whitelist) or disapproval (blacklist).
I haven't heard of it but it sounds like C/R with message verification. I
believe John Fenley or someone else a while back proposed that C/R system
verify that messages were actually sent. Others have proposed similar
"callback" methods as well.
Yakov
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Yakov Shafranovich / <research(_at_)solidmatrix(_dot_)com>
SolidMatrix Research, a division of SolidMatrix Technologies, Inc.
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"One who watches the wind will never sow, and one who keeps his eyes on
the clouds will never reap" (Ecclesiastes 11:4)
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