mail.electricalalarm.de has no NS records.
NS records for this zone are defined at electricalalarm.de.
NS records for this zone are defined at electricalalarm.de.
Question and response
Question
dig mail.electricalalarm.de. NS
Answer
The response has no answer records.
Authority
electricalalarm.de. 3601 SOA dns1.registrar-servers.com. hostmaster.registrar-servers.com. 1774288333 43200 3600 604800 3601
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0