On Thu, Feb 1, 2024 at 10:12 AM Todd Herr via mailop
wrote:
>
> I've seen as yet unconfirmed speculation that this might be the error
> response Yahoo is using for those that don't comply with the new (as of
> today) requirements that mail be authenticated using SPF, DKIM, and DMARC.
>
> See also
On Thu, Feb 1, 2024 at 1:01 PM Robert L Mathews via mailop <
mailop@mailop.org> wrote:
> I see occasional bounces from AOL/Yahoo that look like this:
>
> 554 5.7.9 Message not accepted for policy reasons. See
> https://postmaster.yahooinc.com/error-codes
>
> However, the "554 5.7.9" doesn't make s
I see occasional bounces from AOL/Yahoo that look like this:
554 5.7.9 Message not accepted for policy reasons. See
https://postmaster.yahooinc.com/error-codes
However, the "554 5.7.9" doesn't make sense to me.
The "554" part is "Transaction failed" (RFC 5321), which is fair enough
(although u
