Question and response
Question
dig smtp.brennercom.net. NS
Answer
smtp.brennercom.net. 5 CNAME cgpvip.bkom.it.
Authority
bkom.it. 1143 SOA marek.ns.cloudflare.com. dns.cloudflare.com. 2397028546 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0