ns245.neubox.net has no MX records.
Question and response
Question
dig ns245.neubox.net. MX
Answer
The response has no answer records.
Authority
neubox.net. 1800 SOA ada.ns.cloudflare.com. dns.cloudflare.com. 2397179804 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0