kloudns.co.uk has no MX records.
Question and response
Question
dig kloudns.co.uk. MX
Answer
The response has no answer records.
Authority
kloudns.co.uk. 3600 SOA ns1.kloudns.co.uk. dns-admin.katapult.io. 1662479199 28800 7200 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0