At 11:44 AM -0400 5/12/1997, Valdis(_dot_)Kletnieks(_at_)vt(_dot_)edu wrote:
***
*** PGP Signature Status: good
*** Signer: <Valdis(_dot_)Kletnieks(_at_)vt(_dot_)edu>
*** Signed: 5/12/1997 at 8:44 AM
*** Verified: 5/13/1997 at 12:57 PM
***
On Mon, 12 May 1997 01:35:07 +0200, you said:
Does anyone know of a discussion on a retraction function for mail
analogous to an NNTP cancel message? I have looked through the IMC and IETF
sites without success. I saw the draft SMTP extension that allows
supersession and expiration, but that's not quite what I'm looking for. I'd
like to see a way for the sender to cancel a message before it is read by
the recipient.
If there isn't such a proposal on the table is this the place to discuss it?
Yes, this would be the place to discuss it.
No, there's no such proposal as far as I am aware.
There are a number of severe problems you need to deal with in any such
proposal:
Tony, if you have some ideas that can address Valdis' concerns, I'd be very
interested in hearing more. I have to be honest and say that I think it is
highly unlikely you can guarantee the cancel in the distrbuted environment
of the Internet. And that is what will be required.
I even think you would be hard pressed to prove that the nntp CANCEL is
100% effective. By that I mean that no one at any site had read a message
that was also cancelled.
john noerenberg
jwn2(_at_)qualcomm(_dot_)com
--------------------------------------------------------------------
"We need not to be left alone. We need to be really
bothered once in a while."
-- Ray Bradbury, Farhenheit 451, 1953
--------------------------------------------------------------------
pgpXHKjUQz6av.pgp
Description: PGP signature