www.cronosinternet.co.uk has no MX records.
Question and response
Question
dig www.cronosinternet.co.uk. MX
Answer
The response has no answer records.
Authority
cronosinternet.co.uk. 300 SOA ns1.cronosinternet.net. support.cronosinternet.net. 2025111001 3600 300 2419200 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0