mx2.internetx.eu has no CNAME records.
Question and response
Question
dig mx2.internetx.eu. NS
Answer
The response has no answer records.
Authority
internetx.eu. 6504 SOA ns1.nodesecure.com. domain-support.internetx.de. 2024064329 39940 14400 604800 21600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0