ns2.ipowerweb.net has no MX records.
Question and response
Question
dig ns2.ipowerweb.net. MX
Answer
The response has no answer records.
Authority
ipowerweb.net. 3600 SOA ns1.ipowerweb.net. hostmaster.ipowerweb.net. 2005120701 80000 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0