spf.vanboxtel.hosting has no CNAME records.
Question and response
Question
dig spf.vanboxtel.hosting. NS
Answer
The response has no answer records.
Authority
vanboxtel.hosting. 2993 SOA nsauth1.interconnect-dns.nl. postmaster.interconnect.nl. 2023050505 14400 1800 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0