[outages] Google Mail rejecting IPv6 originated mails

[Marlen Caemmerer]

Hey,

as far as I remember this issue comes up once in a while since several years.
There are postfix configs out there to adress this issue by sending via IPv4 to Gmail.

https://tanguy.ortolo.eu/blog/article109/google-ipv6-smtp-restrictions
or
https://blog.hqcodeshop.fi/archives/122-Fixing-Googles-new-IPv6-mail-policy-with-Postfix.html

Hth

On Thu, 23 May 2019, Jared Mauch via Outages wrote:

> Date: Thu, 23 May 2019 13:31:28
> From: Jared Mauch via Outages <outages at outages.org>
> Reply-To: Jared Mauch <jared at puck.nether.net>
> To: Robbie Trencheny via Outages <outages at outages.org>
> Subject: [outages] Google Mail rejecting IPv6 originated mails
> 
> Anyone else having this problem?  Their system is periodically rejecting mails and reporting it as invalid IPv6 PTR but there have been no changes in my systems, and the help pages at google do not actually provide any additional guidance.
>
> - Jared
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