_spf.itmnetworks.net has no NS records.
NS records for this zone are defined at itmnetworks.net.
NS records for this zone are defined at itmnetworks.net.
Question and response
Question
dig _spf.itmnetworks.net. NS
Answer
The response has no answer records.
Authority
itmnetworks.net. 1800 SOA jerome.ns.cloudflare.com. dns.cloudflare.com. 2397124825 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0