spf.web.online.fi has no MX records.
Question and response
Question
dig spf.web.online.fi. MX
Answer
The response has no answer records.
Authority
online.fi. 86400 SOA dns1.solutions.fi. dnsmaster.solutions.fi. 2026021302 10800 3600 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0