mail.pica.nl has no NS records.
NS records for this zone are defined at pica.nl.
NS records for this zone are defined at pica.nl.
Question and response
Question
dig mail.pica.nl. NS
Answer
The response has no answer records.
Authority
pica.nl. 1800 SOA michelle.ns.cloudflare.com. dns.cloudflare.com. 2396698086 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0