http://www.ietf.org/internet-drafts/draft-bonatti-generic-antispam-00.txt
To save people's time, it's yet another scheme for recipients to call
back to senders to ask if they sent it.
All of the problems that applied to the callback system discussed last
week appear to apply equally to this one.
Regards,
John Levine, johnl(_at_)taugh(_dot_)com, Taughannock Networks, Trumansburg NY
http://www.taugh.com
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