Apex domains cannot have CNAME records.
Question and response
Question
dig emailarray.com. NS
Answer
emailarray.com. 1 NS ns3.emailarray.com.
emailarray.com. 1 NS ns2.emailarray.com.
emailarray.com. 1 NS ns1.emailarray.com.
Authority
The response has no authority records.
Additional
ns1.emailarray.com. 1 A 69.28.212.201
ns2.emailarray.com. 1 A 65.39.216.2
ns3.emailarray.com. 1 A 104.238.182.243
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0