testmailserver.qualityserver.de has no NS records.
NS records for this zone are defined at qualityserver.de.
NS records for this zone are defined at qualityserver.de.
Question and response
Question
dig testmailserver.qualityserver.de. NS
Answer
The response has no answer records.
Authority
qualityserver.de. 3600 SOA master.domainkunden.de. hostmaster.domainkunden.de. 2025042301 28800 7200 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0