167-0.gwi.net has no MX records.
Question and response
Question
dig 167-0.gwi.net. MX
Answer
The response has no answer records.
Authority
gwi.net. 345600 SOA ns3.gwi.net. hostmaster.gwi.net. 2026020900 21600 3600 864000 345600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0