Policies: https://dmarc.org/2022/03/dmarc-policies-up-84-for-2021/
For mailboxes that implement DMARC and send reports, Valimail (and Dmarcian
I believe) have historically tracked and published that. I'll hunt down
that data tomorrow. Off the top of my head, it was about 80% of mailboxes
globally (4bn+) properly validate DMARC, and the majority of those send
reports, with the notable exception of Microsoft, which is now finally
starting to do that.
For PSD, I don't think that's implemented anywhere at any major mailbox
provider, just in some open source libraries as a test.
Seth
On Tue, Apr 12, 2022 at 8:28 PM John Levine wrote:
> Are there any public numbers on the amount of mail that is subject to
> DMARC policy, number of mailboxes implementing DMARC policies, number
> sending reports, stuff like that?
>
> Someone was also asking about PSD adoption but I assume at this point
> it is still zero other than some small tests.
>
> R's,
> John
>
>
>
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