mail-out.eranet.pl has no NS records.
NS records for this zone are defined at eranet.pl.
NS records for this zone are defined at eranet.pl.
Question and response
Question
dig mail-out.eranet.pl. NS
Answer
The response has no answer records.
Authority
eranet.pl. 240 SOA ns3.ptc.com.pl. hostmaster.t-mobile.pl. 2013031248 3600 600 1209600 240
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0