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RE: How do you stop outgoing spam?

daemon@ATHENA.MIT.EDU (Al Rowland)
Mon Sep 9 13:38:03 2002

From: "Al Rowland" <alan_r1@corp.earthlink.net>
To: <nanog@merit.edu>
Date: Mon, 9 Sep 2002 10:37:35 -0700
In-Reply-To: <20020909191931.I21998-100000@sequoia.muada.com>
Errors-To: owner-nanog-outgoing@merit.edu


Final comment on this subject (I promise) :)

How many (more) protocols are we willing to cripple in the name of
fighting spam?

Best regards,
_________________________
Alan Rowland


-----Original Message-----
From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of
Iljitsch van Beijnum
Sent: Monday, September 09, 2002 10:23 AM
To: Hank Nussbacher
Cc: nanog@merit.edu
Subject: Re: How do you stop outgoing spam?



On Mon, 9 Sep 2002, Hank Nussbacher wrote:

> Looking for automatic off-the-shelf solution.  Not something that 
> requires a NOC to constantly update a Cisco ACL.

Correct me if I'm wrong, but the web (ok, most of it) has been running
on TCP port 80 for quite a while now. So if you limit outgoing TCP
packets to port 80 (and probably some variations, such as HTTP+SSL) to a
few kbps, regardless of their destination, you don't hurt legitimate
users except some very rare cases such as HTTP uploads but you make life
less fun for spammers.



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