mx1.mpynet.fi has no CNAME records.
Question and response
Question
dig mx1.mpynet.fi. NS
Answer
The response has no answer records.
Authority
mpynet.fi. 3067 SOA ns1.mpynet.fi. hostmaster.mpynet.fi. 2026030501 14400 7200 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0