On 2005-01-08 13:15:07 +0100, Peter J. Holzer wrote: > On 2005-01-07 20:02:31 -0500, Seth Breidbart wrote: > > > for a sufficiently large ISP (think AOL, or a cable modem business), > > > keeping track of the tuples of <sender, recipient> for any length of time > > > will require a _substantial_ database infrastructure. > > Under 1K of data. Remembering stuff is doing it the hard way. Create > > the lhs of the Message-ID signed with a private key that changes > > daily. > > That assumes that the Message-ID is created by the MTA. Many MUAs create > the Message-ID themselves, and the MTA should not (indeed must not, per > RFC 2476 and 2821, if it is syntactically correct) replace it, because > that would make the "In-Reply-To" and "References" headers useless. However, the ENVID introduced in RFC 1891 (current version: RFC 3461) may be generated in that way. Would that be feasible? * Do MUAs generate ENVIDs? * Which percentage of bounces contains the ENVID? Looks like I should do a bit of research on our mail server :-) hp -- _ | Peter J. Holzer | Je höher der Norden, desto weniger wird |_|_) | Sysadmin WSR | überhaupt gesprochen, also auch kein Dialekt. | | | hjp at hjp.at | Hallig Gröde ist fast gänzlich dialektfrei. __/ | http://www.hjp.at/ | -- Hannes Petersen in desd
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