John Levine wrote: > As I said a few messages up in this string, although the structure of > IPv4 DNSxLs has long since been cast in concrete, IPv6 DNSxLs aren't > that mature yet and one of my goals was to make them interoperate > equally well so, for example, if you find you're using cruddy ones you > can easily switch to better ones. I suspect it will be very difficult to make IPv6 DNSxLs work anywhere nearly as well as IPv4 DNSxLs, because in IPv6 it is fairly easy to use a different address for every SMTP conversation. _______________________________________________ Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf