mail.emailgreen.net has no NS records.
NS records for this zone are defined at emailgreen.net.
NS records for this zone are defined at emailgreen.net.
Question and response
Question
dig mail.emailgreen.net. NS
Answer
The response has no answer records.
Authority
emailgreen.net. 1800 SOA dom.ns.cloudflare.com. dns.cloudflare.com. 2397068883 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0