mail1.hosting.lp.pl has no NS records.
NS records for this zone are defined at lp.pl.
NS records for this zone are defined at lp.pl.
Question and response
Question
dig mail1.hosting.lp.pl. NS
Answer
The response has no answer records.
Authority
lp.pl. 10 SOA ns1.lp.pl. dns.polcom.net. 2009022357 3600 600 604800 10
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0