cbws.be has no MX records.
Question and response
Question
dig cbws.be. MX
Answer
The response has no answer records.
Authority
cbws.be. 3592 SOA ns.cbws.nl. hostmaster.cbws.be. 2025091101 14400 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0