_spf.kmitd.com has no CNAME records.
Question and response
Question
dig _spf.kmitd.com. NS
Answer
The response has no answer records.
Authority
kmitd.com. 2742 SOA ns3.1-hostingservice.com. domains.1-hostingservice.com. 2025111003 3600 60 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0