_spf.cloud-cfg.com has no CNAME records.
Question and response
Question
dig _spf.cloud-cfg.com. NS
Answer
The response has no answer records.
Authority
cloud-cfg.com. 3162 SOA a.myradns.net. hostmaster.nfon.com. 2026020601 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0