dns.monit24.net has no MX records.
Question and response
Question
dig dns.monit24.net. MX
Answer
The response has no answer records.
Authority
monit24.net. 300 SOA dns103.ovh.net. tech.ovh.net. 2022040402 86400 3600 3600000 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0