[185549] in North American Network Operators' Group

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Re: Uptick in spam

daemon@ATHENA.MIT.EDU (Connor Wilkins)
Tue Oct 27 10:33:11 2015

X-Original-To: nanog@nanog.org
Date: Tue, 27 Oct 2015 14:33:03 +0000
From: Connor Wilkins <connorwilkins@ruggedinbox.com>
To: Ian Smith <ian.w.smith@gmail.com>
In-Reply-To: <CALeqL2fxYbiUk294VqGPD3fiYQkyELF83KVdcd-2RM_QXEEFbg@mail.gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org

On 2015-10-27 13:08, Ian Smith wrote:
> But that's not how SPF works.  In SPF, the domain of the envelope 
> header
> sender address is checked against that domain's sender policy.  Since
> jdlabs.fr has no policy specified, a strict SPF policy at the NANOG 
> server
> would have prevented this small issue.

No sane system rejects email based on the lack of a SPF policy.

If the domain had a policy ending in "-all" and the spam wasn't coming 
from a source allowed by the policy then it should be marked as failing, 
held for moderator review, or rejected.

-- 
“Simply stated, we have a new formula for Coke.” --- Roberto C. 
Goizueta, Company Chairman, Coca-Cola

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