mx2.perfect-net.pl has no NS records.
NS records for this zone are defined at perfect-net.pl.
NS records for this zone are defined at perfect-net.pl.
Question and response
Question
dig mx2.perfect-net.pl. NS
Answer
The response has no answer records.
Authority
perfect-net.pl. 86400 SOA ns1.perfect-net.pl. dns.perfect-net.pl. 2025120300 21600 7200 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0