HTML import into eM Client

We use a hotel program. Reservation confirmations that we would like to send by e-mail are sent as HTML code to the e-mail program. With Outlook and Thunderbird, these e-mails are converted to text and displayed as desired. Why doesn ́t this work with eM Client? Is there a way to solve this issue? Because we would like to use eM Client in the future.

Választani   ____