mx01.sendcockpit.com has no NS records.
NS records for this zone are defined at sendcockpit.com.
NS records for this zone are defined at sendcockpit.com.
Question and response
Question
dig mx01.sendcockpit.com. NS
Answer
The response has no answer records.
Authority
sendcockpit.com. 3600 SOA dns1.netways.de. hostmaster.netways.de. 2025021401 10800 1800 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0