ans1.hinet.net has no MX records.
Question and response
Question
dig ans1.hinet.net. MX
Answer
The response has no answer records.
Authority
hinet.net. 86400 SOA ans1.hinet.net. hostmaster.hinet.net. 2026022400 300 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0