mail2.kolorowypieprz.pl has no NS records.
NS records for this zone are defined at kolorowypieprz.pl.
NS records for this zone are defined at kolorowypieprz.pl.
Question and response
Question
dig mail2.kolorowypieprz.pl. NS
Answer
The response has no answer records.
Authority
kolorowypieprz.pl. 1800 SOA denver.ns.cloudflare.com. dns.cloudflare.com. 2397859121 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0