nps2._domainkey.Hojmark.dk has no NS records.
NS records for this zone are defined at Hojmark.dk.
NS records for this zone are defined at Hojmark.dk.
Question and response
Question
dig nps2.domainkey.u3789899.wl150.sendgrid.net. NS
Answer
The response has no answer records.
Authority
wl150.sendgrid.net. 1800 SOA aisha.ns.cloudflare.com. dns.cloudflare.com. 2399345130 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0