rdns2.hivelocity.net has no MX records.
Question and response
Question
dig rdns2.hivelocity.net. MX
Answer
The response has no answer records.
Authority
hivelocity.net. 3600 SOA ns3.hivelocity.net. hostmaster.hivelocity.net. 2025050833 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0