I am suggesting less reporting, not trying to obligate more.

Let's try to understand the issue this way:   Would the following Facebook
post be wise or foolish?

"My house has 4 doors, and when I leave home, 3 of them are securely
locked.'

Is there any unwanted information disclosure?

Doug

On Wed, Nov 16, 2022, 6:23 AM Laura Atkins <[email protected]> wrote:

>
>
> On 16 Nov 2022, at 10:54, John R. Levine <[email protected]> wrote:
>
> On Tue, 15 Nov 2022, Douglas Foster wrote:
>
> If a server farm hosts DomainA and DomainB, and I only get DMARC aggregate
> reports when I send to DomainA, then I can conclude that DomainB is not
> evaluating DMARC and is therefore more vulnerable to impersonation attacks
> than DomainA.
>
>
> You can conclude whatever you want, but all you know is that they don't
> send reports.  You don't know whether they are looking at DMARC and for
> some "security" reason don't send them.
>
>
> Seconding this. There was a major mailbox provider who host both free
> consumer domains and a lot of corporate domains that didn’t send DMARC
> reports. They were, in fact, evaluating DMARC, but they did not send
> reports back. (I believe they are now, but it took a while).
>
> In any event, the point of IETF standards is to tell people how to
> interoperate.  It is not our job to try to save people from themselves. If
> someone doesn't want to use DMARC, that's up to them, not to us or to you.
>
>
> I don’t think it’s a good idea to obligate organizations to send reports
> if they choose to evaluate DMARC.
>
> laura
>
> --
> The Delivery Experts
>
> Laura Atkins
> Word to the Wise
> [email protected]
>
> Email Delivery Blog: http://wordtothewise.com/blog
>
>
>
>
>
>
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