relay01.kiev.sovam.com has no CNAME records.
Question and response
Question
dig relay01.kiev.sovam.com. NS
Answer
The response has no answer records.
Authority
kiev.sovam.com. 1664 SOA ns.sovamua.com. domaintech.kiev.sovam.com. 2020010600 14400 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0