mail.secapp.fi has no MX records.
Question and response
Question
dig mail.secapp.fi. MX
Answer
The response has no answer records.
Authority
secapp.fi. 60 SOA ns1.secapp.fi. hostmaster.secapp.fi. 2026021800 28800 7200 604800 60
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0