this post was submitted on 27 Jun 2026
94 points (94.3% liked)
Privacy
49339 readers
640 users here now
A place to discuss privacy and freedom in the digital world.
Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.
In this community everyone is welcome to post links and discuss topics related to privacy.
Some Rules
- Posting a link to a website containing tracking isn't great, if contents of the website are behind a paywall maybe copy them into the post
- Don't promote proprietary software
- Try to keep things on topic
- If you have a question, please try searching for previous discussions, maybe it has already been answered
- Reposts are fine, but should have at least a couple of weeks in between so that the post can reach a new audience
- Be nice :)
Related communities
much thanks to @gary_host_laptop for the logo design :)
founded 6 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Correct me if I'm wrong, but, regarding the first point, in what way are the calendar clients proprietary? Unless I am missing something, the clients for iOS and Android are open source and licensed under GPLv3 while the desktop client (part of the mail app) appears to be licensed under AGPL v3.
The email system not working with Thunderbird etc. out-of-the-box is true but that is kind of understandable, considering that the emails are only stored and transmitted to the first-party clients in an encrypted form that other clients couldn't work with? And you could use the mail bridge (which is also open source, if I am not mistaken) to expose them as a local server to be used by Thunderbird etc., right? Maybe not ideal but I'd agrue it's "fine".
I do agree that there are things to dislike about Proton but those two don't seem like problems in my opinion...
When I say that "their calendar will NOT work with open technologies from F-Droid and such", I mean that their calendar system does not support webdav or similar sync-ing technologies. Actually no single app from F-Droid is compatible with their unpaid service, and their own app is not on F-Droid either. If you pay, it all of a sudden becomes possible, but... see the points above.
Same thing if I want to integrate a calendar from Proton into any other calendar or set of calendars by the way. Which is my use case. In the end, I open some calendars natively in my system, and just that one Proton calendar - separately, detached from the rest of the world.
I see your point. Though I could imagine at least some form of IMAP access working. For example, there's an *already-existing* technology to automatically encrypt incoming emails with a person's provided public key. This is compatible with the standard IMAP protocol - just encrypt it server-side upon receiving the email.
Correct. I do that, to use Thunderbird as my mail app with Proton.