mx.temarivo.net has no NS records.
NS records for this zone are defined at temarivo.net.
NS records for this zone are defined at temarivo.net.
Question and response
Question
dig mx.temarivo.net. NS
Answer
The response has no answer records.
Authority
temarivo.net. 3600 SOA dns.temarivo.net. hostmaster.temarivo.net. 1711669161 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0