antispamccs.thaicloudsolutions.com has no MX records.
Question and response
Question
dig lb-fm6hr3g8-xbhevi69j0wlsn32.clb.th-tencentclb.net. MX
Answer
The response has no answer records.
Authority
th-tencentclb.net. 180 SOA ns3.dnsv5.com. enterprise3dnsadmin.dnspod.com. 1772021790 3600 180 1209600 180
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0