ns9.consolidated.net has no MX records.
Question and response
Question
dig ns9.consolidated.net. MX
Answer
The response has no answer records.
Authority
consolidated.net. 900 SOA ans01.consolidated.net. dnsadmin.consolidated.net. 4935 10800 3600 1209600 900
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0