On 6/5/12 10:33 AM, "Jeroen Massar" <jer...@unfix.org> wrote:
>Though it can work, it used to be a really bad idea as there where a >couple of SMTP systems (Communigate Pro being one of them I recall) >which just failed when not seeing an "A" on an MX, this as they did not >understand IPv6... > >There is bound to be other systems that are broken like that that will >not failover to the secondary MX, as such, you might want to add an IPv4 >address there too just in case. Thanks for the advice. You are seeing inbound records in the very first stage. More AAAA RRs are coming. The next 24-48 hours around World IPv6 Launch will be interesting. Jason
