mail1.tgml2.co.uk has no NS records.
NS records for this zone are defined at tgml2.co.uk.
NS records for this zone are defined at tgml2.co.uk.
Question and response
Question
dig mail1.tgml2.co.uk. NS
Answer
The response has no answer records.
Authority
tgml2.co.uk. 1800 SOA brianna.ns.cloudflare.com. dns.cloudflare.com. 2395601496 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0