mx2.tnnet.fi has no NS records.
NS records for this zone are defined at tnnet.fi.
NS records for this zone are defined at tnnet.fi.
Question and response
Question
dig mx2.tnnet.fi. NS
Answer
The response has no answer records.
Authority
tnnet.fi. 300 SOA timantti.tnnet.fi. admin.tnnet.fi. 2026021901 300 600 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0