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-... 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@outages.org> Reply-To: Jared Mauch <jared@puck.nether.net> To: Robbie Trencheny via Outages <outages@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.
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