www.ncuk.com has no MX records.
Question and response
Question
dig www.ncuk.com. MX
Answer
The response has no answer records.
Authority
ncuk.com. 600 SOA ns0.ncuk.net. hostmaster.ncuk.com. 2025071400 7200 3600 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0