mail.arpa.teredo.pl has no NS records.
NS records for this zone are defined at arpa.teredo.pl.
NS records for this zone are defined at arpa.teredo.pl.
Question and response
Question
dig mail.arpa.teredo.pl. NS
Answer
The response has no answer records.
Authority
arpa.teredo.pl. 3600 SOA webh.pro. tech.webh.pro. 2021033822 3600 3600 604800 86400
Additional
. 0 OPT ; payload 2800, xrcode 0, version 0, flags 0