smtp1.infraorders.nl has no MX records.
Question and response
Question
dig smtp1.infraorders.nl. MX
Answer
The response has no answer records.
Authority
infraorders.nl. 300 SOA ns2.transip.eu. hostmaster.transip.nl. 2025120200 86400 1800 2419200 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0