0.89.55.66.hosted.by.thegcloud.com has no MX records.
Question and response
Question
dig 0.89.55.66.hosted.by.thegcloud.com. MX
Answer
The response has no answer records.
Authority
thegcloud.com. 400 SOA ns1.gigenet.com. hostmaster.gigenet.com. 2024010600 3600 900 604800 86400
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0