mail2.handles.de has no NS records.
NS records for this zone are defined at handles.de.
NS records for this zone are defined at handles.de.
Question and response
Question
dig mail2.handles.de. NS
Answer
The response has no answer records.
Authority
handles.de. 3600 SOA dns.dns1.de. hostmaster.partnergate.com. 2024052305 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0