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Re: [Asrg] Re: 6. Proposals - rDNS and rMX

2003-11-28 19:37:23
On Thu, Nov 27, 2003 at 10:36:39AM -0800, Hallam-Baker, Phillip wrote:
Absolutely, reverse DNS has not been generally considered a critical
infrastructure, nobody uses it today except for debugging. 

This is not true.

The other practical problem is that there are machines with several hundred
thousand email domains parked on one machine.

Did you read the MTAmark proposal at all?
Your above statement is neither a problem nor is it in any way related to
the MTAmark propsal. With MTAmark you "mark MTAs" as being such. If
there is a MTA running on the machine with several hundred thousand
email domains parked and the MTA should be a Internet wide sending MTA
it is marked as such. If the machine is only a webserver that should not
send out emails it is marked "MTA=no". It is irrelevant whether there is
one domain associated with that machine or 10000000.
MTAmark is a way to tell other MTAs "accept email from that IP" or "do
not accept email from that IP". This is the only criterion and given the
zillions of hacked, 0wned, misconfigured and virus contaminated machines
out there it is IMHO an important one.

        \Maex

-- 
SpaceNet AG            | Joseph-Dollinger-Bogen 14 | Fon: +49 (89) 32356-0
Research & Development |       D-80807 Muenchen    | Fax: +49 (89) 32356-299
"The security, stability and reliability of a computer system is reciprocally
 proportional to the amount of vacuity between the ears of the admin"

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