mie-mail-gw.mie-mail.ntt.com.
Question and response
Question
dig 22.0.193.160.210.in-addr.arpa. PTR
Answer
22.0.193.160.210.in-addr.arpa. 3600 PTR mie-mail-gw.mie-mail.ntt.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0