Question and response
Question
dig imap.granderiver.net. NS
Answer
imap.granderiver.net. 5 CNAME 104.128.152.137.
Authority
. 85370 SOA a.root-servers.net. nstld.verisign-grs.com. 2026022800 1800 900 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0