dtacplay.net has no MX records.
Question and response
Question
dig dtacplay.net. MX
Answer
The response has no answer records.
Authority
dtacplay.net. 900 SOA ns3.dtac.co.th. please_set_email.absolutely.nowhere. 2017021322 10800 3600 2592000 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0