XYplorer Beta Club

Hello!
I've read several helpful posts about previewing .msg files and it works for me. At the same time, the design of free apps is far behind that of XYPLORER. If you know of a .msg preview app that is not only stable, but has a suitable modern design, I would appreciate it if you could share it.
Thanks

This free one runs fine for me in Explorer, Everything, Total Commander and XY
https://www.brandsict.nl/msgpreviewer_en.php
What modern design do you expect from a previewer, it normaly doesn't have any UI.

A difficult question. I'm looking for something that doesn't look at first glance like the design is not an integral part of the program, for example Quicklook (which is modern and intuitive).