virtacore.rcimx.net has no MX records.
Question and response
Question
dig virtacore.rcimx.net. MX
Answer
The response has no answer records.
Authority
virtacore.rcimx.net. 300 SOA eden.redcondor.net. hostmaster.redcondor.net. 1580169665 1800 180 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0