mail.goodsrv.de has no NS records.
NS records for this zone are defined at goodsrv.de.
NS records for this zone are defined at goodsrv.de.
Question and response
Question
dig mail.goodsrv.de. NS
Answer
The response has no answer records.
Authority
goodsrv.de. 86400 SOA root-dns.netcup.net. dnsadmin.netcup.net. 2026022539 28800 7200 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0