sender.interkam.pl has no NS records.
NS records for this zone are defined at interkam.pl.
NS records for this zone are defined at interkam.pl.
Question and response
Question
dig sender.interkam.pl. NS
Answer
The response has no answer records.
Authority
interkam.pl. 3600 SOA dns.home.pl. admin.home.pl. 1584979806 14400 7200 2419200 3600
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0