During these times when the -invading practices of are brought into light, it might be good to check back again with :

I had only checked them back when they were just getting started, and encryption was still in the works. Today, encryption is built-in using and they offer even clients for the desktop.

Has anyone tried it?

@kzimmermann i tried it. It was ok. I don't remember if it had issues about posting images or attachments or i'm confusing it with briar

@kzimmermann tried it a few months ago and I've been an advocate ever since 🤩

@michal awesome! How's autocrypt by the way? Can you use it when talking to an email client that supports PGP like? (I assume that raw messages that are exchanged are no more different than a PGP ASCII-armored message, but I haven't read the standard)

@kzimmermann perhaps, I haven't dug that deep into specs. But when both parties use Delta the experience is flawless.

Yet another privacy respecting chat app nobody I know uses?

@peter perhaps! But this uses email as a backbone for message delivery. And pretty much everyone uses email.

@peter @kzimmermann Deltachat is based on email, and most people have that. It will lack the forward secrecy of other chat apps, but is probably good enough.

@peter @kzimmermann I was looking for something like this a few years back and didn't find it. Might take it for a spin ...

@peter @kzimmermann So far: seems to work fine, and have almost everything I'd want

@peter @kzimmermann
No native video calling, unsurprisingly, but facility for starting calls with a third party service like Jitsi

@peter @kzimmermann But setting it up for non-gmail domains that use Google for email doesn't seem to work (which means it would be a tough sell for some of my social network)

@robertfromont wait, really? This sounds like a pretty significant letdown, since the big selling point of this project is to make email usable as a mass means to secure communication again.

I'll do some more investigation.


@kzimmermann @peter There appeared to be two problems:

1) It would successfully detect the domain supported OAuth, and authenticated successfully, but would then get the IMAP/SMTP host names wrong, so failed to connect.

I could manually fix up those host names in the settings, but can't expect most of the people I want to use this with to manage that...

@kzimmermann @peter 2) Once the host names were fixed, it would work for a while and then start showing IMAP errors, and not receive messages any more.

This rings a bell; I *think* Gmail has a low tolerance for long lived, or numerous, connections or something like that.

There seemed to be nothing to tweak in the settings to fix this, and again, even if there were, I can't expect my non-technical contacts to fix it themselves.

@kzimmermann @peter I guess I should raise a couple of issues on there GitHub repo <sigh>

@robertfromont it makes sense, I think large providers do something like that as a spam prevention measure or something. But breaks legit usage like delta.

There's a small "issue" writeup regarding specifically gmail in their site too, I think it covers at least your point #1


@kzimmermann @peter

I rasied an issue, and it turns out my issue is fixed but not released yet, so that's pretty encouraging.

@robertfromont @kzimmermann

It does sound like something I wanted, too.
I will have a look.

Is it something I can send out to my family members, without them needing a specific app?

@peter in theory yes, as if the other people don't use this app delta will fall back to plain email (it is email, after all), so can be read with any email client.

But first heed the warnings in this thread about whether this is appropriate for your threat model or not:


I tried it, but unfortunately there are issues in my experience with delayed not really an IM:(

I had an issue with my provider throttling delivery to a certain number per hour as spam prevention. Too bad, I love the idea.

@kzimmermann tried to use it and thought it would act as an email client, but never succeeded to receive an email on it, may be it’s me

I have the mobile app for a long time now. Found it an interesting approach. And yes it works.
It has also an option to import/export keys.
If possible you should create and use a separate email address or else it will handle each incoming mail as a contact request.

Apropos handle...
I also thought you're German. Success with hide and seek. 😀
I also like your profile foto as I'm a huge fan of Tarantino. 🌚😈


Sure, I'm using it for more than a year ;-) I use it as my main #messaging system

@arbocenc that is great! Have you got anybody else on board with you? Maybe your family, once you convince them to use email for chatting again? :)


It's not necessary! You can use it with any #email account... And I know all my familiars and friends mail ;-)

So I use it with lots of contacts, and 3 of them are @delta users too

Sign in to participate in the conversation

Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.