mx14.centerasecurity.dk has no NS records.
NS records for this zone are defined at centerasecurity.dk.
NS records for this zone are defined at centerasecurity.dk.
Question and response
Question
dig mx14.centerasecurity.dk. NS
Answer
The response has no answer records.
Authority
centerasecurity.dk. 1800 SOA curt.ns.cloudflare.com. dns.cloudflare.com. 2397240896 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0