mail.netpower.co.il has no NS records.
NS records for this zone are defined at netpower.co.il.
NS records for this zone are defined at netpower.co.il.
Question and response
Question
dig mail.netpower.co.il. NS
Answer
The response has no answer records.
Authority
netpower.co.il. 1800 SOA greg.ns.cloudflare.com. dns.cloudflare.com. 2398474298 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0