_spf.spamfri.dk has no NS records.
NS records for this zone are defined at spamfri.dk.
NS records for this zone are defined at spamfri.dk.
Question and response
Question
dig _spf.spamfri.dk. NS
Answer
The response has no answer records.
Authority
spamfri.dk. 7200 SOA ns1.dns.services. post.dns.services. 2022051770 10800 3600 1814400 7200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0