comendo-com.mx1.comendosystems.com has no MX records.
Question and response
Question
dig comendo-com.mx1.comendosystems.com. MX
Answer
The response has no answer records.
Authority
mx1.comendosystems.com. 3600 SOA ns1.electric.net. dns.electric.net. 1453845397 10000 1800 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0