nanog mailing list archives

RE: ARIN whois


From: "Roeland M.J. Meyer" <rmeyer () mhsc com>
Date: Tue, 23 Nov 1999 06:15:11 -0800


Analogies never prove anything. Let's get our hands on the real thing
instead. Show me another way to run a third-party e-mail gateway that
doesn't require a smart relay somewhere. Oh yeah, do it with sendmail.

-----Original Message-----
From: Bruce Campbell [mailto:bc () vicious dropbear id au]
Sent: Tuesday, November 23, 1999 1:18 AM
To: Roeland M.J. Meyer
Cc: nanog () merit edu
Subject: RE: ARIN whois


On Mon, 22 Nov 1999, Roeland M.J. Meyer wrote:

What "legitimate business purposes" necessitate leaving SMTP
relays open
to the world?

How about running a commercial email gateway?

Lets try another analogy set, ie  You run a gas station.

open-relay:
      You give out free fuel to whoever turns up in a vehicle
capable of
      accepting fuel from your bowser.

pop-before-smtp authentication:
      You require a valid corporate fleet card before handing
out fuel.

full-anti-relay:
      You require payment before letting them near the bowser.

trusted-hosts or IP-based access lists:
      If their numberplate is in a certain range, give them free fuel.

How about commercial anonymous re-mailers?

Ah, this would be:

      You give out free fuel on sighting, but not verifying,
a corporate
      fleet card, and give them a new car.

--==--
Bruce.

Peregrinus expectavi pedes meos in cymbalis est.





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