mx2.cloned.org.uk has no MX records.
Question and response
Question
dig mx2.cloned.org.uk. MX
Answer
The response has no answer records.
Authority
cloned.org.uk. 600 SOA ns0.ncuk.net. hostmaster.cloned.org.uk. 2025060400 1800 3600 2419200 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0