mx04.cloud.vadesecure.com has no NS records.
NS records for this zone are defined at cloud.vadesecure.com.
NS records for this zone are defined at cloud.vadesecure.com.
Question and response
Question
dig mx04.cloud.vadesecure.com. NS
Answer
The response has no answer records.
Authority
cloud.vadesecure.com. 900 SOA ns-1699.awsdns-20.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0