postal.copyleft.no.
Question and response
Question
dig 130.196.220.91.in-addr.arpa. PTR
Answer
130.196.220.91.in-addr.arpa. 86400 PTR postal.copyleft.no.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0