spf.zm.ukfast.co.uk has no MX records.
Question and response
Question
dig spf.zm.ukfast.co.uk. MX
Answer
The response has no answer records.
Authority
ukfast.co.uk. 300 SOA ns0.ukfast.co.uk. support.ukfast.net. 2026022404 7200 3600 600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0