_spf.be.sentia.cloud has no MX records.
Question and response
Question
dig _spf.be.sentia.cloud. MX
Answer
The response has no answer records.
Authority
be.sentia.cloud. 300 SOA ns1.cie.ac. hostmaster.cie.ac. 2026022501 10800 3600 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0