mail.asperion.nl has no NS records.
NS records for this zone are defined at asperion.nl.
NS records for this zone are defined at asperion.nl.
Question and response
Question
dig mail.asperion.nl. NS
Answer
The response has no answer records.
Authority
asperion.nl. 300 SOA ns0.transip.net. hostmaster.transip.nl. 2026022500 86400 1800 2419200 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0