op-mail00.home.net.pl has no NS records.
NS records for this zone are defined at home.net.pl.
NS records for this zone are defined at home.net.pl.
Question and response
Question
dig op-mail00.home.net.pl. NS
Answer
The response has no answer records.
Authority
home.net.pl. 3600 SOA dns.home.pl. admin.home.pl. 1574070386 14400 7200 2419200 3600
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0