mx.Korbank.PL has no NS records.
NS records for this zone are defined at Korbank.PL.
NS records for this zone are defined at Korbank.PL.
Question and response
Question
dig mx.Korbank.PL. NS
Answer
The response has no answer records.
Authority
korbank.pl. 900 SOA dns.korbank.pl. hostmaster.korbank.pl. 2025091528 900 300 604800 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0