> That is mostly how I thought it worked. What I had in mind more > specifically was: > > adi.com zone: > mackerel.adi.com. IN A 75.100.245.141 > mackerel.adi.com. IN A 96.85.104.76 > > reverse zones: > 141.245.100.75.in-addr.arpa. IN PTR mackerel.adi.com > 76.104.85.96.in-addr.arpa. (not yet set up)
OK, suppose you then set up 76.104.85.96.in-addr.arpa. IN PTR mackerel.adi.com. That may not play well with all the SMTP servers you wish to send to, due to subtle implementation variations. > But receiving mail on both was more work than I had expected, so I am > not going to set that up. Many sites have separate incoming and outbound SMTP servers. There is no reason to name them the same, especially not when you plan to implement them on separate IP addresses/ranges. The important thing is that the A and PTR records agree. That is most simply done by using a single A record for each name, and a single PTR record for each IP. _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
