relay-alpha-0.mxroute.com has no MX records.
Question and response
Question
dig relay-alpha-0.mxroute.com. MX
Answer
The response has no answer records.
Authority
mxroute.com. 3600 SOA ns21.cloudns.net. support.cloudns.net. 2026022304 7200 1800 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0