Question and response
Question
dig mail01.bigcenter.com. SIG
Answer
The response has no answer records.
Authority
bigcenter.com. 1800 SOA fred.ns.cloudflare.com. dns.cloudflare.com. 2398183670 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0