ns1.buynames.co.uk has no MX records.
Question and response
Question
dig ns1.buynames.co.uk. MX
Answer
The response has no answer records.
Authority
buynames.co.uk. 86400 SOA www.buynames.co.uk. denys.buynames.co.uk. 2017060300 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0