[outages] Google Mail rejecting IPv6 originated mails

[Will]

I don't have any problems delivering IPv6 originated e-mail to Google.

I just made my IPv6 match my IPv4, which means I have IPv4 & IPv6 TXT / SPF / PTR / DMARC records where appropriate, and I sign with DKIM.

Works like a champ, roughly half the mail I exchange with Google is over IPv6, the other half over IPv4 (in and out). I've never had to do the PCRE / Transport modification listed earlier in the thread.

--Will


On 2019/5/23 09:18 , Gert Doering via Outages wrote:
> Google is fully intent on making people use IPv4 for SMTP delivery
> to their MXes.
>
> Lots of silly requirements that are not there on IPv4 (like, must have
> strong PTRs, SPF, DKIM, ...) - so, BCP today is "just deliver to Google
> over IPv4".
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