mx01.greenradar.com has no NS records.
NS records for this zone are defined at greenradar.com.
NS records for this zone are defined at greenradar.com.
Question and response
Question
dig mx01.greenradar.com. NS
Answer
The response has no answer records.
Authority
greenradar.com. 600 SOA pdns07.domaincontrol.com. dns.jomax.net. 2026022201 28800 7200 604800 600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0