Question and response
Question
dig relay22.mailserve.net. PTR
Answer
The response has no answer records.
Authority
mailserve.net. 400 SOA qlcomm.com. sharad.qlcomm.com. 2009013009 1800 900 604800 1800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0