What is MX record?
MX or Mail Exchange is a DNS setting which can be configured in your account. With other words, this DNS settings are responsible for routing of your email messages and where they will be delivered.
The default MX records for all clients on shared servers on TMDHosting are:
The priority for the first record is 10, while for the second is 20.
You can review and change this DNS settings from your cPanel -> Mail -> MX Entry.