mail.vhcloud.uk has no NS records.
NS records for this zone are defined at vhcloud.uk.
NS records for this zone are defined at vhcloud.uk.
Question and response
Question
dig mail.vhcloud.uk. NS
Answer
The response has no answer records.
Authority
vhcloud.uk. 1800 SOA dean.ns.cloudflare.com. dns.cloudflare.com. 2396596574 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0