mail.morph-boat.awk.jp has no CNAME records.
Question and response
Question
dig mail.morph-boat.awk.jp. NS
Answer
The response has no answer records.
Authority
morph-boat.awk.jp. 2043 SOA ns.morph-boat.awk.jp. maruchi.yk.rim.or.jp. 2022031402 14400 60 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0