ipdns1.hinet.net has no MX records.
Question and response
Question
dig ipdns1.hinet.net. MX
Answer
The response has no answer records.
Authority
hinet.net. 86400 SOA ans1.hinet.net. hostmaster.hinet.net. 2026021300 300 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0