email-security-1.wx3.se.
swedfone.wx3.se.
Question and response
Question
dig 142.128-255.24.37.212.in-addr.arpa. PTR
Answer
142.128-255.24.37.212.in-addr.arpa. 3600 PTR email-security-1.wx3.se.
142.128-255.24.37.212.in-addr.arpa. 3600 PTR swedfone.wx3.se.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0