spf.emailkampane.cz has no NS records.
NS records for this zone are defined at emailkampane.cz.
NS records for this zone are defined at emailkampane.cz.
Question and response
Question
dig spf.emailkampane.cz. NS
Answer
The response has no answer records.
Authority
emailkampane.cz. 1800 SOA ns1.zcom.cz. hostmaster.zcom.cz. 1773697952 10800 3600 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0