mail1.MCTRADE.RU has no CNAME records.
Question and response
Question
dig mail1.MCTRADE.RU. NS
Answer
The response has no answer records.
Authority
MCTRADE.RU. 3349 SOA ns1.ihc.RU. info.ihc.RU. 2016051301 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0