99.http-proxy1.cloudns.net has no MX records.
Question and response
Question
dig 99.http-proxy1.cloudns.net. MX
Answer
The response has no answer records.
Authority
cloudns.net. 172800 SOA pns1.cloudns.net. support.cloudns.net. 2026021702 7200 3600 1209600 172800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0