Question and response
Question
dig mx01.dcsix.net. NSEC
Answer
The response has no answer records.
Authority
dcsix.net. 300 SOA ns1.dcsix.net. hostmaster.dcsix.net. 2015120638 14400 3600 604800 300
Additional
. 0 OPT ; payload 1400, xrcode 0, version 0, flags 0