[26670] in North American Network Operators' Group

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Re: Selection of Appropriate Local SMTP Relay

daemon@ATHENA.MIT.EDU (jlewis@lewis.org)
Tue Jan 11 22:02:47 2000

Date: Tue, 11 Jan 2000 21:59:34 -0500 (EST)
From: jlewis@lewis.org
To: "Forrest W. Christian" <forrestc@iMach.com>
Cc: Brandon Ross <bross@mindspring.net>, nanog@merit.edu
In-Reply-To: <Pine.BSF.3.96.1000111012940.2988I-100000@workhorse.iMach.com>
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Errors-To: owner-nanog-outgoing@merit.edu


On Tue, 11 Jan 2000, Forrest W. Christian wrote:

> > I'm not saying I have the right answer, just that whatever the answer is
> > should support at least a majority of the current base.
> 
> I think must of us agree that the the truly right answer (at least for
> SMTP Relay) is to implement SMTP auth on a global scale.

That's a nice idea...but we can't even get all the open relay's closed.
How many years do you think it'll take to fundamentally change how the
SMTP protocol works across the entire internet?

I'm more in favor of the idea of using an SMTP server local to the network
you're dialing into and blocking or transparently redirecting SMTP traffic
to remote networks.  I realize this makes it difficult or impossible to
impose your restrictions on what your customers can do with SMTP if they
dial into outsourced ports, but IMO this would stop the abuse of open
relays much sooner than SMTP auth can.

----------------------------------------------------------------------
 Jon Lewis *jlewis@lewis.org*|  Spammers will be winnuked or 
 System Administrator        |  nestea'd...whatever it takes
 Atlantic Net                |  to get the job done.
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