[142825] in North American Network Operators' Group
Re: Spam?
daemon@ATHENA.MIT.EDU (Richard Kulawiec)
Thu Jul 14 06:28:21 2011
Date: Thu, 14 Jul 2011 06:27:21 -0400
From: Richard Kulawiec <rsk@gsp.org>
To: nanog@nanog.org
In-Reply-To: <4E1E9156.5040104@bowenvale.co.nz>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Thu, Jul 14, 2011 at 06:48:54PM +1200, Don Gould wrote:
> OMG can't you people run proper spam filtering on your own mail
> servers that filter out the nanog messages that are spam?!
One of the fundamental principles of spam mitigation is that blocking
is usually best (in terms of: efficacy, accuracy, resource minimization,
and other metrics) when applied as close to the source as possible.
In the case of mailing lists, such as this one, it has been a best practice
for many years to only permit traffic from subscribers (and optionally,
from individually-listed addresses, which are often alternate addresses
for subscribers). It is clear that a serious mistake was made during
the attempted migration of this list, i.e., this best practice was not
followed, thus allowing some number of messages from non-subscribers to
reach some number of subscribers. The proper solution to this is most
emphatically not to ask the thousands of NANOG subscribers to adjust
their mail systems; the proper solution is to continue to employ this
best practice.
---rsk
