Apex domains cannot have CNAME records.
Question and response
Question
dig satorimail.net. NS
Answer
satorimail.net. 5 NS ns-572.awsdns-07.net.
satorimail.net. 5 NS ns-408.awsdns-51.com.
satorimail.net. 5 NS ns-1959.awsdns-52.co.uk.
satorimail.net. 5 NS ns-1056.awsdns-04.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0