exch500.serverdata.net has no MX records.
Question and response
Question
dig exch500.serverdata.net. MX
Answer
The response has no answer records.
Authority
exch500.serverdata.net. 3600 SOA ns2.serverdata.net. hostmaster.intermedia.net. 2025021301 3600 1800 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0