ns0.server.fido.net has no MX records.
Question and response
Question
dig ns0.server.fido.net. MX
Answer
The response has no answer records.
Authority
server.fido.net. 600 SOA my.fido.net. root.my.fido.net. 2024012901 7200 3600 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0