cdn.othd.net has no MX records.
Question and response
Question
dig ha.othd.net. MX
Answer
The response has no answer records.
Authority
othd.net. 3600 SOA ns1.ornethd.net. noc.ornethd.net. 1750149391 3600 600 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0