mx.waiblinger.net.
Question and response
Question
dig 126.124.253.145.in-addr.arpa. PTR
Answer
126.124.253.145.in-addr.arpa. 43200 PTR mx.waiblinger.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1460, xrcode 0, version 0, flags 0