mail.d100.nodea.net.pl has no NS records.
NS records for this zone are defined at d100.nodea.net.pl.
NS records for this zone are defined at d100.nodea.net.pl.
Question and response
Question
dig mail.d100.nodea.net.pl. NS
Answer
The response has no answer records.
Authority
d100.nodea.net.pl. 100 SOA ns1.nodea.net.pl. hostmaster.d100.nodea.net.pl. 2023102500 100 3600 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0