pgdc2fmail1.fnzsg.net has no NS records.
NS records for this zone are defined at fnzsg.net.
NS records for this zone are defined at fnzsg.net.
Question and response
Question
dig pgdc2fmail1.fnzsg.net. NS
Answer
The response has no answer records.
Authority
fnzsg.net. 1800 SOA kaiser.ns.cloudflare.com. dns.cloudflare.com. 2398854672 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0