_spf.oktey.com has no CNAME records.
Question and response
Question
dig _spf.oktey.com. NS
Answer
The response has no answer records.
Authority
oktey.com. 523 SOA josh.ns.cloudflare.com. dns.cloudflare.com. 2396972625 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0