v5189.v5d3c8578.euw1.send.eu.mailgun.net has no NS records.
NS records for this zone are defined at v5d3c8578.euw1.send.eu.mailgun.net.
NS records for this zone are defined at v5d3c8578.euw1.send.eu.mailgun.net.
Question and response
Question
dig v5189.v5d3c8578.euw1.send.eu.mailgun.net. NS
Answer
The response has no answer records.
Authority
v5d3c8578.euw1.send.eu.mailgun.net. 300 SOA ns-cloud-d1.googledomains.com. cloud-dns-hostmaster.google.com. 1 21600 3600 259200 300
Additional
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0