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by EduardoBautista 522 days ago
The issue is that the open protocols IMAP, CalDAV, and CardDAV weren't built with E2EE in mind. This is the big reason why you can't use 3rd party calendar clients with Proton.
2 comments
ivan_gammel 522 days ago
3rd party client or support for those protocols is not the only solution to collaboration and offline access. Their own app must do it well first.
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rekoil 522 days ago
If that's the only issue it should be trivial for Proton to release a slightly modified version of Thunderbird that allows decrypting an encrypted CalDAV XML. That could then be the basis for extending the spec to allow encryption.
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