On Thu, May 23, 2019 at 14:18 Gert Doering via Outages <[email protected]> wrote:
> On Thu, May 23, 2019 at 07:31:28AM -0400, Jared Mauch via Outages wrote: > > 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. > > 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". Or phrased differently “when you turn off IPv6, it works better”. :-( Kind regards, Job
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