On 2021-11-18, Simon Hoffmann <[email protected]> wrote: > --TB36FDmn/VVEgNH/ > Content-Type: text/plain; charset=us-ascii > Content-Disposition: inline > Content-Transfer-Encoding: 7bit > >> On Thu, Nov 18, 2021 at 10:55:00AM +0100, Simon Hoffmann wrote: >> > > >> > > >> > > >GMail still wont accept my IPv6 submitted mails. >> > > >> > > Are you using ipv6 connectivity over tunnel from tunnelbroker.net? >> > >> > Nope. My relays have "real" IPv6 /64 networks assigned to their interfaces >> > natively. >> > >> > However, I'd still like to only use IPv4 when sending messages. >> >> Why? Why not fix the IPv6 issue? Our servers deliver to gmail over IPv6 >> with >> no issues.
Google certainly seem much more stringent about what mail they'll accept over v6. Several MTA now have a way to disable v6 / drop AAAA records that was *specifically* added to get around problems delivering to Google. > Hmm, thats interesting. The last time i googled it said that its a known > issue with > gmail and one should use IPv4. Also, the GMail help and the error message > were all to > no use. > > I will try sending via IPv6 later today and report back. > > If you like, you can lookup DNS recors for mxbackup.hetzner.hoffbox.net > Should be correct. PTR has the same name as A/AAAa, A and AAAA are present... Hetzner address space is not likely to have the best IP reputation on mail receivers.. -- Please keep replies on the mailing list.
