Question and response
Question
dig mail3.itmfs.com. NS
Answer
mail3.itmfs.com. 5 CNAME email3.itmems4.com.
Authority
itmems4.com. 1455 SOA amy.ns.cloudflare.com. dns.cloudflare.com. 2396944958 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0