mail.serviceprovider.nl has no NS records.
NS records for this zone are defined at serviceprovider.nl.
NS records for this zone are defined at serviceprovider.nl.
Question and response
Question
dig mail.serviceprovider.nl. NS
Answer
The response has no answer records.
Authority
serviceprovider.nl. 86400 SOA ns1.serviceprovider.nl. hostmaster.serviceprovider.nl. 2025111142 600 3600 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0