good to see that this is planned, im planning to become a paid user soon!

+1

I was going to switch to proton mail until I learned they don't have contact syncing. Import/export is not a practical solution at all. If I add a new contact on my phone, I want that information available in my email client.

This is a great idea. If protonmail had this, I'd switch over to it (the paid version) today.

> I suspect that the encryption on the contacts would prevent a normal CardDAV implementation from being possible.

Protonmail clearly doesn't use passwords to derive encryption keys for contacts (as they allow for password recovery), so they have the ability to encrypt/decrypt contacts on disk. A Carddav server would be technically feasible, and the spec is pretty straightforward.

JohnyD, protonmail users don't have friends or they use gmail for contact sync :))

seriously now, cardDAV is basic stuff these days, make it happen pls...
and for the 'encrypt everything' dudes, don't enable!

Come on people, not only 1% of you have Trump in your contacts so this feature is a must without encryption! It is like a staple. You want too much stuff encrypted, it is just paranoia that breaks usability!

Is it not included in this topic ?
https://protonmail.uservoice.com/forums/284483-feedback/suggestions/31691812-contacts-calendars-and-notes

This is for me the ONLY thing that is keeping me away - if i move from gmail or other, how do I know who is calling me without contacts synced with the phone? I don't understand why other features are voted more, don't people have real friends with telephone numbers? :)

If I can't call anyone because the contacts are not synced with iPhone, than keeping contacts @gmail, e-mail @protonmail and storrage @synology is a messy option.

CardDAV (as well as CalDAV) is a must!

And for real, contacts doesn't have to be encrypted.. we don't call NSA people or something.
Security is a great thing, to much security = lack of features/functionality = people don't switch.

Like in my organization, forcing users to have a complex password every 3months and guess what? Full of yellow post-it pinned all over the desks :)

I suspect that the encryption on the contacts would prevent a normal CardDAV implementation from being possible. What probably would work fine, and would solve the most common use case, would be to implement a (possibly bi-directional) syncing feature to the Android and iOS apps. That way, users could "push" their ProtonMail contacts into their phone's contact store.

With 3.12 we have a good contact manager, thanks a lot :D !
Know it just need a good sync ability for the app.
Maybe a way to replace standards contact phone manager by Protonmail ? Even with a separate app ?

This would be a wonderful feature! One of the things I'm still considering before really changing my email service.

Currently, "synchronization" of contacts can be partially done.

1) General: vCard import/export was recently implemented (with encrypted contacts for paid members).

2) Mobile: the app already pulls contacts from phone

3) Desktop: Protonmail-Bridge would allow usage with a third party client with synchronized contacts.

Providing a server (*and a client*) for carddav would make the synchronization more well integrated.

Wtih carddav *client*, one could sync it with e.g. nextcloud. One loses protonmail's encryption, but it is a nice feature, and the mobile app already pulls contacts from somewhere.

With carddav *server*, I agree with the comment of Bryce McNab: implement it nicely so that other software (such as android and thunderbird) can retrieve the data!

The ability for Protonmail on Android to synchronize contacts with the contacts saved on your Android device. The lack of contact syncing is one of the only things keeping me reliant on Google, and it would be nice to have a privacy friendly alternative in this area as well.

This would be great. But first contacts must contain at least phone number and email - if not full data (home, work, note, agreed password, etc).
When contacts contains phone number then it is up to ProtonMail to integrate contacts with android phone (or iPhone). Giving full featured solution (email calendar, contacts) is the way to go.

Based on Protonmails setup, I think it would be really cool if the current contacts feature on the android app would sync full vCards, and keep them encrypted on the servers. Then, it could use the built in API to expose the contacts to the phone, as DavDroid would using carddav.

I know the security/privacy issues of keeping unencrypted data on 3rd party (ProtonMail) servers. This way, it's encrypted with your mailbox as usual, and uses the app/website to view/decrypt and 'sync' with the local phone.

I'm not an expert on iOS but I imagine they have a similar function that allows 3rd party apps to use an internal API to expose contacts, but I may be wrong.

It will be a good idea to sync contact with Nextcloud.

my android phone communicates with my google contact list directly - my phone's "contacts" is literally just a display of my google contacts, updated in real time (i.e. i can change contact data via my browser, and when i whip out my phone updated information is reflected).

i'm not terribly tech savvy, but as SodaPhish mentioned this DOES seem like it would be a huge risk for compromise. i would have to integrate my pmail password with my android OS for it to access my contact list.

i'm spending one of my votes on this feature because i do think it would be extremely helpful, but i'm not holding my breath.

Contacts and calendar sync absence is what stops me from abandoning google's services. Adding these would be great and a big advantage.

any bleed-over to less secure platforms is how you erode the security of PM.

Gave 3 votes to this idea, which would almost complete the removal of dependency on Google (the final step is a calendaring solution).

For reference: Posteo already supports this (via CardDAV), as well as Calendar data too (CalDAV).