smtp.destiny.be has no MX records.
Question and response
Question
dig smtp.destiny.be. MX
Answer
The response has no answer records.
Authority
destiny.be. 600 SOA ns1.benesol.be. support.benesol.be. 2026022002 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0