Question and response
Question
dig mx1.se1.protection.inumbo.com. PTR
Answer
The response has no answer records.
Authority
inumbo.com. 300 SOA ns.rackspace.com. info.halon.se. 1770635208 21600 3600 1814400 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0