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[dmarc-ietf] p=quarantine

Michael Thomas <mike@mtcc.com> Tue, 08 December 2020 17:41 UTC

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To: "dmarc@ietf.org" <dmarc@ietf.org>
From: Michael Thomas <mike@mtcc.com>
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Date: Tue, 08 Dec 2020 09:41:48 -0800
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Subject: [dmarc-ietf] p=quarantine
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If you take the literal meaning of quarantine, that means that every 
piece of email from this and every other mailing list would end up in a 
quarantine folder, or some such. I'm fairly certain that is not what 
people want, and I'm doubtful that many receivers implement that. The 
question to my mind is whether there actually exists a state between "we 
don't know" and "trash it because it's not from us". "Quarantine" seems 
to mean "be more suspicious of this", but I'm not sure if that is of any 
help to filters. Ultimately it's whether filters find these policies 
useful is what actually matters. Don't we have enough data lying around 
these days to inform us? If filters are ignoring it, then it's rather 
pointless. This discussion (and many others) should be data driven, IMO.

Mike

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