Thunderbird desktop app has Tuta Calendar and Tuta Mail web-app integration via add-ons

Due to built-in end-to-end encryption, Tuta Mail and Tuta Calendar cannot be integrated into Thunderbird via IMAP or CalDAV. However, we now have a workaround for all Thunderbird fans: Tuta Mail and Tuta Calendar are now available as separate Thunderbird desktop add-ons. You can easily access the Tuta web app via handy quick access buttons in the Spaces Toolbar. And with just one click, Tuta opens directly in Thunderbird, each in a new tab.

Technically, this is secure web app access within the Thunderbird desktop app—without any restrictions on functionality.

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With this method, would a Tuta email user be able to store/archive locally emails now?

I mean, with Proton Bridge, we can remove emails from Proton’s servers, storing it in our PCs saving server usage, is this a possibility with Tuta?

As someone who uses Thunderbird, this is good news, but admittedly, for both Proton and Tuta, I prefer to use the official desktop app, because it allows me to send scheduled messages. On Thunderbird, scheduled messages require that the app remains open. Whereas with Tuta and Proton’s apps, because they’d connected to the web, I can close them, shut my computer off, go to bed, and rest assured that my scheduled emails will be sent in the morning.

This is a nothing burger. Why not just use a web app at that point.

It’s pretty handy actually

Using Betterbird, can quickly check both my accounts without need for another app or browser