Translating an incoming message
The ✨ button above a message translates it into your interface language. For HTML mail the layout is untouched — tables, images and line breaks stay exactly as they were, only the words change. Press the same button to go back to the original.
Translating your reply
While composing there are language buttons under the text area. Write in your own language, press EN, and the text becomes English.
The translation replaces what you wrote, but an “undo” button appears next to it — one click returns your original text if you do not like the result.