mail.xplod.de has no NS records.
NS records for this zone are defined at xplod.de.
NS records for this zone are defined at xplod.de.
Question and response
Question
dig mail.xplod.de. NS
Answer
The response has no answer records.
Authority
xplod.de. 86400 SOA root-dns.netcup.net. dnsadmin.netcup.net. 2025112702 28800 7200 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0