mail.mediasystem-tdi.pl has no NS records.
NS records for this zone are defined at mediasystem-tdi.pl.
NS records for this zone are defined at mediasystem-tdi.pl.
Question and response
Question
dig mail.mediasystem-tdi.pl. NS
Answer
The response has no answer records.
Authority
mediasystem-tdi.pl. 3600 SOA dns1.mediasystem-tdi.pl. admin.mediasystem-tdi.pl. 2026011501 28800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0