mx.spamfilter.io has no NS records.
NS records for this zone are defined at spamfilter.io.
NS records for this zone are defined at spamfilter.io.
Question and response
Question
dig mx.spamfilter.io. NS
Answer
The response has no answer records.
Authority
spamfilter.io. 300 SOA ns1.wannafind.dk. hostmaster.wannafind.dk. 2025112702 14400 3600 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0