mail.d9tn8.seohost.cloud has no CNAME records.
Question and response
Question
dig mail.d9tn8.seohost.cloud. NS
Answer
The response has no answer records.
Authority
d9tn8.seohost.cloud. 1344 SOA ns1.d9tn8.seohost.cloud. hostmaster.d9tn8.seohost.cloud. 2025090802 3600 3600 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0