mail.eurofusion.eu has no CNAME records.
Question and response
Question
dig mail.eurofusion.eu. NS
Answer
The response has no answer records.
Authority
eurofusion.eu. 1174 SOA ns1.netim.net. hostmaster.netim.net. 2512300041 10800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0