this post was submitted on 04 Sep 2024
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You're wrong, Proton encrypts notifications before sending them to you through Google or Apple push services. The notification is then decrypted in the Proton client on your phone, and only then displayed to you.
Source?
Can't find the blog post on the Proton website anymore, but here's an official response from the Proton support team on Reddit: https://www.reddit.com/r/ProtonMail/comments/1cmcre5/comment/l33oxua/
Sending plain text notifications is impossible for Proton btw, since they don't hold the encryption keys to your email inbox and can't read your emails themselves, and thus can't send you a notification with the email subject and body.
titles and senders are not encrypted, they are capable of sending that
The notifications themselves are still end-to-end encrypted though (from the Proton Mail notification server to the client on your phone), so Google, Apple or any other push notification provider can't read them.
sure, I believe that. though google still knows precisely if you receive a new mail, and the bigger problem is that without google services notifications won't work whatsoever
Currently, yes. But they are working on they're own notification systems (probably something based on WebSocket, similar to what Signal does), hopefully it will also be compatible with UnifiedPush. There's a feature request for this on the Proton user feedback tracker: https://protonmail.uservoice.com/forums/284483-proton-mail/suggestions/47423924-support-unifiedpush-for-android-notifications
they have been working on it for years, as I remember. In the meantime they have released half a dozen software that I believe are more complex than a simple notification system.