ns4.lowfive.nl has no MX records.
Question and response
Question
dig ns4.lowfive.nl. MX
Answer
The response has no answer records.
Authority
lowfive.nl. 3600 SOA ns3.lowfive.nl. hostmaster.lowfive.nl. 2025080401 14400 3600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0