mx1.inetmail.cloud has no MX records.
Question and response
Question
dig mx1.inetmail.cloud. MX
Answer
The response has no answer records.
Authority
inetmail.cloud. 300 SOA ns01.inet.co.th. root.inetmail.cloud. 843 3600 600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0