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Is the Android Protonmail app on F-Droid safe?
(android.izzysoft.de)
There is now an official Protonmail Community at !protonprivacy@lemmy.world
Weird since they apparently thought it was worth it for their VPN app, but not their email client.
VPN app doesn't have to poll server for incoming messages. And, anyway, it is expected to drain your battery when connected