mxserver6.strikemail.co.uk has no NS records.
NS records for this zone are defined at strikemail.co.uk.
NS records for this zone are defined at strikemail.co.uk.
Question and response
Question
dig mxserver6.strikemail.co.uk. NS
Answer
The response has no answer records.
Authority
strikemail.co.uk. 3600 SOA ns1.katapult.io. dns-admin.katapult.io. 1771411847 28800 7200 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0