mx2.hostfactory.swiss has no CNAME records.
Question and response
Question
dig mx2.hostfactory.swiss. NS
Answer
The response has no answer records.
Authority
hostfactory.swiss. 1559 SOA ns01.hostfactory.ch. sales.hostfactory.ch. 2025121647 7200 7200 1209600 7200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0