Re: [Asrg] 6. Proposals - AMTP (rev 01) - MPC

[Yakov Shafranovich <research@solidmatrix.com>]

Bill Weinman wrote:
> At 08:27 PM 10/2/2003, Brad Knowles wrote:
>
> >         Over 50% of the ccTLD nameservers are open public 
> > caching/recursive nameservers and vulnerable to cache 
> > pollution/poisoning.
> > [[snip]]
>
> I recognize that there is a problem with DNS that has potential for 
> abuse, but I seriously question whether the mail transfer protocol is 
> the appropriate place to deal with it.
>
> Is this problem, by itself, justification for the additional overhead of 
> X.509 authentication for the *receiving* MTA as a requirement in the 
> mail transfer protocol? I tend to think it's a problem that should be 
> dealt with in DNS.
Please take a look at the archive, we had an extensive discussion a 
while back in regards to DNS security and DNS-SEC.

Also I would like to point out that certain technical nitty gritties of 
proposals might be better debated off-list as per RFC 2014:

"     The Chair should attempt to ensure that the discussions on this
      list are relevant and that not devolve to "flame" attacks or rat-
      hole into technical trivia.
"

Some of the discussion around AMTP has been getting pretty close to 
"technical trivia". In particular, AMTP has two mailing lists setup for 
discussion and I would encourage folks to use them. However, I am sure 
that Bill will keep us updated on regular intervals on AMTP and will 
come back seeking more comments.

Yakov


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