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

Benny Lyne Amorsen <benny+usenet@amorsen.dk> Wed, 02 December 2020 14:28 UTC

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From: Benny Lyne Amorsen <benny+usenet@amorsen.dk>
Date: Wed, 02 Dec 2020 15:28:41 +0100
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Subject: Re: [dmarc-ietf] Ticket #39 - remove p=quarantine
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Dave Crocker <dcrocker@gmail.com> writes:

>  p: Domain Owner Assessment Policy (plain-text; REQUIRED for policy
>  records). Indicates the severity of concern the domain owner has, for
>  mail using its domain but not passing DMARC validation. Policy
>  applies to the domain queried and to subdomains, unless subdomain
>  policy is explicitly described using the "sp" tag. This tag is
>  mandatory for policy records only, but not for third-party reporting
>  records (see Section 7.1). Possible values are as follows:
>
>  none: The Domain Owner offers no expression of concern. 
>
>  quarantine: The Domain Owner considers such mail to be suspicious. It
>  is possible the mail is valid, although the failure creates a
>  significant concern.
>
>  reject: The Domain Owner considers all such failures to be a clear
>  indication that the use of the domain name is not valid.  See Section
>  10.3 for some discussion of SMTP rejection methods and their
>  implications.

Perhaps, in retrospect, the p= should have had something like the
following values:

none
untrustworthy
invalid

p= mistakenly chose to use the language of receiver actions to describe
what is actually domain-owner judgements. This is unfortunate, since it
risks making the sender believe that it is possible to dictate receiver
policy.

Perhaps new names can be found, and the old ones kept as historical
aliases?


/Benny