smtp-listserver-2b.ria.ee has no CNAME records.
Question and response
Question
dig smtp-listserver-2b.ria.ee. NS
Answer
The response has no answer records.
Authority
ria.ee. 3600 SOA ans1.aso.ee. hostmaster.ria.ee. 2026030402 86400 7200 3600000 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0