mail-en07-crm-sg01.avature.net.
Question and response
Question
dig 142.128-255.56.217.74.in-addr.arpa. PTR
Answer
142.128-255.56.217.74.in-addr.arpa. 5 PTR mail-en07-crm-sg01.avature.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0