Tony Finch <dot(_at_)dotat(_dot_)at> schrieb/wrote:
I expect to see a lot more junk email from <> and therefore a lot more
systems rejecting all bounces. I haven't seen much talk about maintaining
the reliablility of Internet email in the face of this kind of attack.
One could use special addresses as the envelope recipient which become
invalid after a month.
Mail to these addresses is only accepted if it has a return path of <>
and mail to other addresses only if it has a return path that is not <>.
The addresses would have to contain a timestamp and a digital signature,
which is checked by the MTA that receives mail for the user who uses
such a scheme.
Claus
--
http://www.faerber.muc.de/
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