Question and response
Question
dig smtp2.coceve.com. NS
Answer
smtp2.coceve.com. 5 CNAME sf2.coceve.com.
Authority
coceve.com. 900 SOA ns-1695.awsdns-19.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0