internal.odessa.tv has no MX records.
Question and response
Question
dig internal.odessa.tv. MX
Answer
The response has no answer records.
Authority
internal.odessa.tv. 3600 SOA ns.odessa.tv. hostmaster.odessa.tv. 4 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0