mail.cloudcamp.cz has no NS records.
NS records for this zone are defined at cloudcamp.cz.
NS records for this zone are defined at cloudcamp.cz.
Question and response
Question
dig mail.cloudcamp.cz. NS
Answer
The response has no answer records.
Authority
cloudcamp.cz. 1800 SOA ns1.geetoo.com. hostmaster.geetoo.com. 15 1200 600 1209600 1800
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0