se.isp-net.nl has no MX records.
Question and response
Question
dig se.isp-net.nl. MX
Answer
The response has no answer records.
Authority
se.isp-net.nl. 655 SOA auth10.dns.internl.net. hostmaster.internl.net. 2024102903 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0