June 23, 2025 at 6:03 AM, "John A via mailop" <mailop@mailop.org
mailto:mailop@mailop.org?to=%22John%20A%20via%20mailop%22%20%3Cmailop%40mailop.org%3E
> wrote:
>
> Double-check your DMARC policy and ensure it has the RUA tag in place.
> Apparently, MSFT is requiring that (they do not honor having only a RUF, btw).
>
That is not what we are seeing. We have both RUA and RUF tags, and it is only a
small percentage of email that is being rejected 'randomly' for apparent DKIM
failures.
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