mail02.netigate.se has no NS records.
NS records for this zone are defined at netigate.se.
NS records for this zone are defined at netigate.se.
Question and response
Question
dig mail02.netigate.se. NS
Answer
The response has no answer records.
Authority
netigate.se. 1800 SOA amit.ns.cloudflare.com. dns.cloudflare.com. 2397428234 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0