mx.telekom.hu has no NS records.
NS records for this zone are defined at telekom.hu.
NS records for this zone are defined at telekom.hu.
Question and response
Question
dig mx.telekom.hu. NS
Answer
The response has no answer records.
Authority
telekom.hu. 300 SOA ans0.t-online.hu. hostmaster.t-online.hu. 2026022704 28800 7200 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0