Re: [dmarc-ietf] Ticket #39 - remove p=quarantine

Jim Fenton <> Thu, 03 December 2020 06:03 UTC

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From: "Jim Fenton" <>
To: "Laura Atkins" <>
Date: Wed, 02 Dec 2020 22:03:24 -0800
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Subject: Re: [dmarc-ietf] Ticket #39 - remove p=quarantine
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On 2 Dec 2020, at 1:47, Laura Atkins wrote:

> p=quarantine is quite useful, particularly for those folks who are 
> trying to get to a p=reject state.
> In practice, senders who publish p=none don’t find all of the 
> indirect mail flows as some mailing lists do nothing to transform the 
> 5322.from address for a p=none policy. Senders have found that when 
> they switch from p=none to p=quarantine pct=0 they regularly find mail 
> that was not failing for a p=none.

I’m really confused by this. It sounds like the 5322.from address 
rewriting is creating additional errors that didn’t exist beforehand, 
and that’s the opposite of the intended purpose. Isn’t the purpose 
of rewriting the 5322.from address to change the domain to that of the 
mediator, which should redirect reporting to the mediator rather than 
the original sender?