mx.privatesystems.net has no NS records.
NS records for this zone are defined at privatesystems.net.
NS records for this zone are defined at privatesystems.net.
Question and response
Question
dig mx.privatesystems.net. NS
Answer
The response has no answer records.
Authority
privatesystems.net. 3600 SOA ns1.privatesystems.net. dns.privatesystems.net. 2026022601 3600 1800 1814400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0