sthaug> If you assume that IPv6 mail servers have static PTRs, there is sthaug> zero added value (and a bit of work) in creating/synthesizing sthaug> IPv6 PTRs for residential customers. Much better to simply not sthaug> do it in the first place.
I'm in agreement that "legitimate", well run mail servers will have static forward and reverse in v6. My concern is random folks who currently accept any v4 PTR regardless of format (but caring if there is no PTR at all) will do something equally bad in v6. i.e. NYT web content and similar pointless cruft. Putting in an auto-gen'ed v6 PTR would satisfy that level of check. _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop