Question and response
Question
dig smtp.mutare.com. PTR
Answer
The response has no answer records.
Authority
mutare.com. 180 SOA ns20.digicertdns.com. dns.digicertdns.com. 2009011665 43200 3600 1209600 180
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0