_spf.ch.seppmail.cloud has no MX records.
Question and response
Question
dig _spf.ch.seppmail.cloud. MX
Answer
The response has no answer records.
Authority
seppmail.cloud. 3600 SOA ns.seppmail.cloud. hostmaster.seppmail.cloud. 2026030682 10800 3600 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0