Hello everyone!
I was wondering what solutions people have for Calendar syncing that are not Proton / Tuta.
Specifically, I was wondering what E2EE options are available that are ideally cross-platform as well.
The main reason why I ask is I am frankly frustrated with how both Tuta and Proton rely on their own apps, and don’t necessarily integrate well with all operating systems. Especially with Proton’s growing suite of apps, it feels like they are in some ways creating their own walled garden. While it is at this time a better privacy option than the conventional options, it is still a situation that feels like a vendor lock-in situation.
Any suggestions would be greatly appreciated, including those that require a self-hosted server :)
Self hosted WebDAV is probably your best bet. I have Tuta but use WebDAV for my calendar.
This. Hosting Baikal for calendar, contacts and tasks on RPi and DAVx5 + Fossify Calendar + Tasks on Android
Idk about E2EE, but I’m using self-hosted Nextcloud. Using CalDAV, you can integrate virtually any app. On Android I’m using DAVx5 and Fossify Calendar.
The advantage of Nextcloud is that it provides a lot of things in one package such as contacts, tasks, notes, files, etc. If you don’t need those, it might be better to look at some of the other suggestions that only provide calendars.
I am considering mailbox.org
what E2EE options are available
both Tuta and Proton rely on their own apps, and don’t necessarily integrate well with all operating systems.
If you’re looking for options that are both E2EE and also use open standards for integrations, you’re not going to have any luck.
This is sadly what I was fearing running into, but I thought I would ask here nonetheless to see what other options people have even if they require some compromises on my goals
Posteo.de is E2EE. It’s $12 per year for email, calendar, and contacts.
I see in the FAQ they mention that “If you would like, you can encrypt your calendar and address book with your password. Therefore, only you have access to your data” (translated by myself into English, sorry if it isn’t exact)
Is there any “downsides” to this in terms of interoperability with other calendar / contact apps?
Thank you so much for your suggestion, this seems like it fills the issues I had when researching mailbox.org
I used it temporarily and didn’t notice anything. I left to use a custom domain, which they don’t support.
I don’t think it’s E2EE, because it uses open standards, bur you could self-host (including on a VPS if that’s easier) a Baikal server. It does contact sync as well, using the CalDAV and CardDAV standards.
Would it run ok on a SBC, such as a raspberry pi? I don’t mind self hosting, but I don’t have the space for a full blown server setup in my appartment sadly (as fun as it would be)
Oh yea, Baikal is incredibly light and they do publish an arm docker image. You could absolutely tun a bunch of other services off the same SBC if it’s a RPi4 or stronger.
How about EteSync?
Do you self-host or do you pay? Just curious what your experience has been with the two options :)
Thank you for the suggestion!
I’m not using it at all, I use the *DAV functionality of my paid mail provider.
I did research on what solution I would use alternatively – with requirements very similar to the ones you proposed – and EteSync checked all the boxes, which is why I recommended it.
I set up an instance once, and it seemed to work just fine, but I haven’t thoroughly evaluated it.
Etar, Fossify Calendar
Maybe take a look at FluidCalendar, I just found it but haven’t tested yet : https://github.com/dotnetfactory/fluid-calendar It’s still in early development but it may have what you need.
Alternatively, you can take a look at Baikal for CalDAV and CardDAV support : https://github.com/sabre-io/Baikal
