mx1.netanswer.fr has no NS records.
NS records for this zone are defined at netanswer.fr.
NS records for this zone are defined at netanswer.fr.
Question and response
Question
dig mx1.netanswer.fr. NS
Answer
The response has no answer records.
Authority
netanswer.fr. 86400 SOA ns0.cusae.com. hostmaster.netanswer.fr. 2026022601 7200 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0