mail.mcfr.uz has no CNAME records.
Question and response
Question
dig mail.mcfr.uz. NS
Answer
The response has no answer records.
Authority
mcfr.uz. 30 SOA mcfr.uz. admin.mcfr.uz. 2026020901 10800 3600 604800 604800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0