static.rdcw.co.th has no MX records.
Question and response
Question
dig static.rdcw.co.th. MX
Answer
The response has no answer records.
Authority
static.rdcw.co.th. 300 SOA ns1.srv.in.th. admin.rdcw.co.th. 2024102901 14400 3600 604800 300
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0