mail-old.lovit.ru has no CNAME records.
Question and response
Question
dig mail-old.lovit.ru. NS
Answer
The response has no answer records.
Authority
lovit.ru. 10800 SOA ns1.tut.net. hostmaster.tut.net. 2026030301 86400 21600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0