_spf0.smoton.com has no CNAME records.
Question and response
Question
dig _spf0.smoton.com. NS
Answer
The response has no answer records.
Authority
smoton.com. 3600 SOA ns1.first-ns.de. dns.hetzner.com. 2025071703 14400 3600 1814400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0