Re: [dmarc-ietf] New proposed wording for p=quarantiine

"John Levine" <johnl@taugh.com> Sat, 03 August 2019 03:05 UTC

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Date: Fri, 02 Aug 2019 23:05:31 -0400
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From: John Levine <johnl@taugh.com>
To: dmarc@ietf.org
Cc: dilyan.palauzov@aegee.org
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Archived-At: <https://mailarchive.ietf.org/arch/msg/dmarc/WDOudVDbrXpscYPjhpf6mTLEyrQ>
Subject: Re: [dmarc-ietf] New proposed wording for p=quarantiine
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In article <97b7d4320e77f9be84703677eba79686ec769f75.camel@aegee.org> you write:
>Hello John,
>
>the "... reject at SMTP level" is at least for messages, directed to an address, which does not support the
>concept of
>quarantining.
>
>Please propose what shall a site do, receiving a message, subject to quarantining, for an address, that does
>not support quarantining.

It should do what RFC 7489 says:

         ...  Depending on the capabilities of the Mail
         Receiver, this can mean "place into spam folder", "scrutinize
         with additional intensity", and/or "flag as suspicious".

Are you really saying your mail system has no spam folders, no way to
adjust spam filtering, and no way to mark messages as suspicious
(e.g., add "PROBABLY SPAM" to the subject line)?

If the problem is that it's an address that goes to some software
robot rather than being seen by people, do whatever you want.  That's
an edge case for DMARC.

R's,
John