ns5.inwx.net has no MX records.
Question and response
Question
dig ns5.inwx.net. MX
Answer
The response has no answer records.
Authority
inwx.net. 3600 SOA ns.inwx.de. hostmaster.inwx.de. 2026030102 10800 3600 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0