spf.mailtarget.co has no NS records.
NS records for this zone are defined at mailtarget.co.
NS records for this zone are defined at mailtarget.co.
Question and response
Question
dig spf.mailtarget.co. NS
Answer
The response has no answer records.
Authority
mailtarget.co. 1800 SOA karl.ns.cloudflare.com. dns.cloudflare.com. 2398095903 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0