Question and response
Question
dig mx2.netnames.net. PTR
Answer
The response has no answer records.
Authority
netnames.net. 172800 SOA udns1.cscdns.net. hostmaster.cscdns.net. 2017101447 3600 1800 3600000 172800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0