Question and response
Question
dig mbssmtp.mbsbooks.com. NSEC3PARAM
Answer
The response has no answer records.
Authority
mbsbooks.com. 1800 SOA chan.ns.cloudflare.com. dns.cloudflare.com. 2398043680 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0