On Jun 10, 2012, at 12:17 PM, Dobbins, Roland wrote: > Clue appreciated, thanks!
Close reading of RFC 1035 shows that sending RD=1 ANY queries is taking a huge chance.. An ANY RD=1 query to a resolver basically means 'give me what you have in the cache', and if only if you have nothing, go out and ask for ANY from the AUTH servers. So you might get back an A record only, for example - even though MX records exist. So it is just stupid to do this unless you fall back to an MX query if you get no MX in the answer (and even then..). Bert _______________________________________________ dns-operations mailing list dns-operations@lists.dns-oarc.net https://lists.dns-oarc.net/mailman/listinfo/dns-operations dns-jobs mailing list https://lists.dns-oarc.net/mailman/listinfo/dns-jobs