web.seoflatrate.co.uk has no MX records.
Question and response
Question
dig web.seoflatrate.co.uk. MX
Answer
The response has no answer records.
Authority
seoflatrate.co.uk. 3600 SOA ns12.wixdns.net. support.wix.com. 2016022659 10800 3600 1209600 3600
Additional
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0