mx.ftcz.net has no NS records.
NS records for this zone are defined at ftcz.net.
NS records for this zone are defined at ftcz.net.
Question and response
Question
dig mx.ftcz.net. NS
Answer
The response has no answer records.
Authority
ftcz.net. 3600 SOA ns.forpsi.net. admin.forpsi.com. 2026021101 14400 3600 2592000 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0