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Re: Stealth Blocking
From: Steve Sobol <sjsobol () NorthShoreTechnologies net>
Date: Thu, 24 May 2001 17:50:39 -0400


Shawn McMahon wrote:

TCP rate-limiting on outbound traffic to *:25 would also be extremely
effective, particularly on unclassified customer traffic, and without the
heavy-handed nature of denying all dial-up traffic. Rate-limiting doesn't
interfere with low-volume legitimate mail, but it really cramps spam.

It interferes heavily with transmission of large files via email, though,
and this *IS* a valid use of service.

The transmission of large files is not a valid use of email.


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