mailer17.allsolutions.nl has no NS records.
NS records for this zone are defined at allsolutions.nl.
NS records for this zone are defined at allsolutions.nl.
Question and response
Question
dig mailer17.allsolutions.nl. NS
Answer
The response has no answer records.
Authority
allsolutions.nl. 300 SOA ns-cloud-b1.googledomains.com. cloud-dns-hostmaster.google.com. 2 21600 3600 259200 300
Additional
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0