mail81.ipnordic.dk has no NS records.
NS records for this zone are defined at ipnordic.dk.
NS records for this zone are defined at ipnordic.dk.
Question and response
Question
dig mail81.ipnordic.dk. NS
Answer
The response has no answer records.
Authority
ipnordic.dk. 3600 SOA ns81.ipnordic.dk. sysops.ipnordic.dk. 1774265017 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0