ns3.witxl.nl has no MX records.
Question and response
Question
dig ns3.witxl.nl. MX
Answer
The response has no answer records.
Authority
witxl.nl. 3600 SOA ns1.witxl.nl. hostmaster.witxl.nl. 2026022400 3600 3600 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0