mxv1-mail.spamora.net has no CNAME records.
Question and response
Question
dig mxv1-mail.spamora.net. NS
Answer
The response has no answer records.
Authority
spamora.net. 10661 SOA ns.netim.net. yannick.netim.com. 2024072901 10800 3600 604800 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0