> On 31 May 2016, at 14:36, Robert Chalmers <rob...@chalmers.com.au> wrote: > > I have a message for en.internet.nl advising me that > “Modern internet address? Not reachable or improvements possible (IPv6)” > -> > "Unfortunately, this e-mail domain can not be reached by senders using modern > IPv6 addresses or there is an error in its configuration. It is not yet part > of the modern Internet. You should ask your e-mail provider to enable IPv6 or > to fix the issues in its configuration.” > > So I’m trying to figure out just what it is thats wrong with it. I’ve had > something of a similar message from Gmail. > My service provider only recently enabled IPv6 for customers, and although > I’m pretty far along with it, I could use a checking server somewhere that > actually delved into it a bit. > > Does Postfix need anything special - I can’t see anything in the docs. > > Thanks > Robert
Hi Robert, http://ipv6-test.com for the basics. dig chalmers.com.au doesn’t give any IPv6 addresses from here. The IPv6 address in your TXT SPF record doesn’t have a reverse DNS record and it doesn’t answer pings. Steve
