pebbles.advsys.co.uk has no MX records.
Question and response
Question
dig pebbles.advsys.co.uk. MX
Answer
The response has no answer records.
Authority
advsys.co.uk. 3600 SOA pebbles.iom.com. dnsadmin.advsys.co.uk. 2025100800 1800 600 1048576 3600
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0