We're happy to announce that all energy used for powering your encrypted mailboxes now comes from renewable energy. 😀 #FridaysForFuture #GoGreen
tutanota.com/blog/posts/green-…
in reply to Tuta

I'm still waiting on Tuta to begin using LESS energy, the apps are hardly carbon friendly. They are the heaviest email apps I've used, and still offer a significantly poorer experience on older hardware. While choice of energy providers might be somewhat out of your control, the efficiency of your code is not, and the collective energy draw by your users running your applications, I imagine, is sizable. +1 to cutting client side energy use as well.