mx01.vecernji.net has no NS records.
NS records for this zone are defined at vecernji.net.
NS records for this zone are defined at vecernji.net.
Question and response
Question
dig mx01.vecernji.net. NS
Answer
The response has no answer records.
Authority
vecernji.net. 900 SOA dns1.styria-it.hr. dvozab.styria-it.hr. 2025040100 7200 600 864000 7200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0