On 2013-05-02, at 02:42, Cathy Almond <cat...@isc.org> wrote: > This may be a red herring, but I've heard of some dropping of DNS > queries for the names within outlook.com domains where the queries are > all coming from source port 53 (i.e. your recursive server doesn't use > query source port randomization
... or there's a NAT or some other box in front of the recursive server which re-writes the source port... > ). Might be worth checking what the > recursive server you're using is doing? > > See https://www.dns-oarc.net/oarc/services/porttest Joe
