mx01.hh02.uptime.de has no NS records.
NS records for this zone are defined at hh02.uptime.de.
NS records for this zone are defined at hh02.uptime.de.
Question and response
Question
dig mx01.hh02.uptime.de. NS
Answer
The response has no answer records.
Authority
hh02.uptime.de. 600 SOA ns.uptime.de. hostmaster.uptime.de. 2025062500 10800 3600 1814400 21600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0