mx2.ukservers.net has no NS records.
NS records for this zone are defined at ukservers.net.
NS records for this zone are defined at ukservers.net.
Question and response
Question
dig mx2.ukservers.net. NS
Answer
The response has no answer records.
Authority
ukservers.net. 86400 SOA ns0.phase8.net. support.phase8.net. 2025010601 28800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0