desm.netins.net has no MX records.
Question and response
Question
dig desm.netins.net. MX
Answer
The response has no answer records.
Authority
desm.netins.net. 86400 SOA ns3k.aureon.com. hostmaster.netins.net. 2017101342 86400 7200 604800 86400
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0