nsi1.litewire.net has no MX records.
Question and response
Question
dig nsi1.litewire.net. MX
Answer
The response has no answer records.
Authority
litewire.net. 3600 SOA epsiloniii. hostmaster.litewire.net. 2019013531 1200 600 1296000 3600
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0