mail.evipmail.pl has no CNAME records.
Question and response
Question
dig mail.evipmail.pl. NS
Answer
The response has no answer records.
Authority
evipmail.pl. 60 SOA ns1.evipmail.pl. root.evipmail.pl. 2023092801 7200 3600 1209600 180
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0