_spf-clients.edunao.com has no NS records.
NS records for this zone are defined at edunao.com.
NS records for this zone are defined at edunao.com.
Question and response
Question
dig _spf-clients.edunao.com. NS
Answer
The response has no answer records.
Authority
edunao.com. 300 SOA dns12.ovh.net. tech.ovh.net. 2026032000 86400 3600 3600000 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0