Re: Limit Mail Submission to inet4
On Thu, 18 Nov 2021, Simon Hoffmann wrote: Why? Why not fix the IPv6 issue? Our servers deliver to gmail over IPv6 with no issues. 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 No problems sending IPv6 to gmail here either (using he.net).
Re: Limit Mail Submission to inet4
On 2021-11-18, Simon Hoffmann 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 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 are present... Hetzner address space is not likely to have the best IP reputation on mail receivers.. -- Please keep replies on the mailing list.
Re: Limit Mail Submission to inet4
> 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. 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 are present... > > > Suggestions? > > Set a fixed IPv4 source address using the src parameter in the action > directive > of your smtpd.conf. Yeah, thats a good idea, thanks! Will be my fallback if i cant get v6 to work. signature.asc Description: PGP signature
Re: Limit Mail Submission to inet4
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. > Suggestions? Set a fixed IPv4 source address using the src parameter in the action directive of your smtpd.conf.
Re: Limit Mail Submission to inet4
> > > >GMail still wont accept my IPv6 submitted mails. > > Hi, > > 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. Suggestions? Thanks! Simon signature.asc Description: PGP signature
Re: Limit Mail Submission to inet4
>GMail still wont accept my IPv6 submitted mails. Hi, Are you using ipv6 connectivity over tunnel from tunnelbroker.net? They block port 25 (in both ways IIRC) due to some people using it to send spam, so you have to reach sage level on their ipv6 knowledge test and then email them asking to unblock it. Kind regards -- Łukasz Moskała
Limit Mail Submission to inet4
Hey, the earlier versions of opensmtpd (with the old config file syntax: accept from...) had the option to specify limit mta inet4 domain.com (from memory), or limit mta inet4 in general, to limit everything to IPv4. With the newer versions (I'm running 6.8.0) this seems no longer possible? What was the reason to remove this? GMail still wont accept my IPv6 submitted mails. Or am I just blind? :) Thanks! Simon signature.asc Description: PGP signature
