[119849] in North American Network Operators' Group

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Re: AT&T SMTP Admin contact?

daemon@ATHENA.MIT.EDU (Chris Owen)
Thu Dec 3 01:26:13 2009

From: Chris Owen <owenc@hubris.net>
In-Reply-To: <20145.1259812342@turing-police.cc.vt.edu>
Date: Thu, 3 Dec 2009 00:25:23 -0600
To: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

On Dec 2, 2009, at 9:52 PM, Valdis.Kletnieks@vt.edu wrote:

> It only stops forgery if the SPF record has a -all in it (as =
hubris.net does).
> However, a lot of domains (mine included) have a ~all instead.

I guess I've never really seen the point of publishing a SPF record if =
it ends in ~all.  What are people supposed to do with that info?

Spamassassin assigns it a score of 0.6 but that is low enough it really =
doesn't have much since it doesn't assign any negative points for =
SPF_PASS.

> (And before anybody asks, yes ~all is what we want, and no you can't =
ask us
> to try -all instead, unless we're allowed to send you all the helpdesk =
calls
> about misconfigured migratory laptops".. ;)

I certainly understand that you may not be able to lock down your =
domain.  We don't even try for customers for instance.    However, if =
you can't, I guess I don't really see what good publishing a SPF record =
is if you tell people not to enforce it.

Chris

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Chris Owen         - Garden City (620) 275-1900 -  Lottery (noun):
President          - Wichita     (316) 858-3000 -    A stupidity tax
Hubris Communications Inc      www.hubris.net
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