Question and response
Question
dig mx0.NA4U.RU. PTR
Answer
The response has no answer records.
Authority
NA4U.RU. 300 SOA ns1.netangels.RU. hostmaster.netangels.RU. 1769619834 3600 1800 1209600 3600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0