mail.ennen.dev has no NS records.
NS records for this zone are defined at ennen.dev.
NS records for this zone are defined at ennen.dev.
Question and response
Question
dig mail.ennen.dev. NS
Answer
The response has no answer records.
Authority
ennen.dev. 86400 SOA root-dns.netcup.net. dnsadmin.netcup.net. 2025112751 28800 7200 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0