Signal's president claimed it takes billions to replicate the availability and reliability of "hyperscalers" (AWS/Google/Microsoft/Cloudfare) that Signal uses.
#chatmail and #deltachat are about disproving this claim by
1) making relays super cheap (DONE)
2) enabling chat profiles to use multiple relays redundantly (WIP)
3) distributing relay knowledge among chatters (TBD).
Fat servers, corporate overlords and billionaires: not needed and better to not exist for a convivial e2ee future :)
New release v2.22.0, finally bringing push notifications to Ubuntu Touch users 🔔 Prerequisite is a chatmail profile.
Other highlights:
📞 Experimental calls (on UT, no video is a known issue, but do let us know if audio doesn't work: support.delta.chat/t/deltatouc…)
Emoji reaction UI/UX has been reworked
👇 Long-press a message to select text for copying
and more, see the full changelog at codeberg.org/lk108/deltatouch/…
#DeltaTouch #DeltaChat #UbuntuTouch
deltatouch - Decentralized, secure messenger app, powered by the chatmail core library. Fediverse: @deltatouch@social.tchncs.deCodeberg.org
We are aware of roskomnadzor just having ramped up their blocking efforts in #russia against #deltachat 's default onboarding chatmail relay. Signal, Whatsapp are degraded/blocked for a longer time already.
1) Delta Chat has first class shadow-socks proxy support (try ss:// links you can find ... Delta has management-proxy UX)
2) many other chatmail relays work fine and inter-chatmail/email server traffic continues unimpeded
3) if you can help with analyzing please drop into our DMs.
La gente de #DeltaChat vuelven a impresionar 🤯 ahora con llamadas P2P (**en beta**)... Donde los servidores no necesitan hacer NADA especial, ni siquiera actualizarse. Todo sigue funcionando bajo estándares de #email. 😍
Hay algo mágico en una aplicación que consigue ser tan independiente incluso de su propia infraestructura. 🪄
Brillante trabajo, @delta, mis felicitaciones. 🚀
Believe it or not: #deltachat is growing audio/video calls starting with the currently rolling 2.22 releases ... A few people already had two hour long stable calls :)
Calls are an experimental option while we continue to work on reliability, UX/UI revisions, and configuration of TURN servers on #chatmail relays and in clients.
We want calls to reliably work across all major platforms, networks and phones, including #UbuntuTouch
Feedback and debugging happens at support.delta.chat/t/help-test…
Всем привет! Возможно ли сделать звонок, если использовать только классические сервера электронной почты? Мои попытки позвонить закончились неудачно - сам вызов проходит, но ни звука, ни видео.Delta.Chat
Good news! It's getting harder to keep track of new #chatmail relays :)
Recently several public relays were added to the chatmail.at/relays list, in Warsaw, Helsinki, Romania and Barcelona.🧡
If you have #deltachat installed on mobile, you can go to any chatmail relay website in the list and click on a link there to create a chat profile.
It's wonderful to hear about collectives setting up chat infrastructure like the recent xat.fedi.cat from @fedicat and @eXOfasia
Chatmail provides FOSS infrastructure for interoperable, secure, speedy and reliable end-to-end encrypted messaging. Check out clients as Arcane Chat, Bots or Delta Chat today!chatmail.at
I've been on the hunt for some accessible, easily self-hosted (on prem or datacenter) chat solution for a while now, and I've been looking very closely at deltachat/chatmail.
Not gonna lie, the fact that just uses mature SMTP facilities for transport is making me weirdly aroused.
If anyone has experience running their own chatmail server or just using deltachat in general, I'd be glad to hear from you.
Not taking Venture Capital money means:
- No pressure to maximize monetization of usage (for every million of VC funding you need to find ~100+ Million in value later).
- No prioritization of growing fast with PR campaigns that promise the moon and stumble on the ground
- No billionaire who ultimately profits
Instead, we seek public funding and private contributions for #chatmail #deltachat and #webxdc developments.
Thanks to everyone who is helping and already test-driving things :)
There is no single central #Signal server. Signal uses #AWS cloud, plus Google Cloud, Microsoft Cloud and Cloudflare, all under US legislation. If any of these clouds goes down or becomes otherwise problematic, chatting degrades or fails.
With #deltachat you can choose #chatmail relays ( chatmail.at/relays ) which distributes the risk across a wider network. We are currently working on the multi-transport feature to finally remove any central point of chat failure chaos.social/@delta/1153621448…
Chatmail provides FOSS infrastructure for interoperable, secure, speedy and reliable end-to-end encrypted messaging. Check out clients as Arcane Chat, Bots or Delta Chat today!chatmail.at
With @signalapp having a problem because AWS us-east-1 is having trouble, I'm looking at installing @delta as a side-channel for situations like this ... does anyone know if it does video?
I know it's a chat function, and I'm not asking for miracles. It's a genuine question about capabilities.
I see there are web apps, and capabilities to integrate things, so I'm wondering what's available in the base install.
My investigations begin ...
Help us to test the upcoming Calling 📞 feature in #DeltaChat
support.delta.chat/t/help-test…
It replaces the external video chat links with an integrated calling solution like you know from other Messengers.
Upcoming Delta Chat release will come with experimental integrated (ringing!) calls feature! 📞🎶 Help us test the new feature: here is Delta Chat 2.22.0 - choose your flavor and mind your backups: 🍋 https://download.delta.Delta.Chat
Hello everyone!
I want to order some stickers. Do you know a website which has high resolution pictures, or svgs?
I want pictures for #FreeBSD, #DeltaChat, #WebXDC, #OpenVoiceOS, #Alpine, #Emacs, #CommonLisp, #SLIME and #Luanti(#Minetest).
The website I want to order from already has got stickers for other things I want.
Boosts appreciated.
#FOSS #sticker #stickers #BSD #opensource
can I ask you a random but very related question?
I have a Lenovo that I want to upgrade to Linux & can't get into the BIOS. What F-key should I use on startup?
If you need some more info, I can hit you up on #DeltaChat
While #chatcontrol poses an existential threat to the Freiburg merlinux GmbH and distributing #deltachat apps from within the EU to all stores worldwide, it would resist any chatcontrol legislation up to the German constitutional and EuGH courts.
If the EU based company would need to fold in a few years, there would likely be forks distributed outside the EU that will *seamlessly* continue to function. Our architecture and FOSS licensing makes sure of it. See also chaos.social/@delta/1134177407…
Preventing enshittificatiom with the "Ulysses pact" from @pluralistic pluralistic.net/2024/11/02/uly…We consider our efforts aligned: #deltachat #chatmail and #webxdc implement "right to exit" on all levels of our decentralized messaging project.
- deploy your own servers permission free and interoperable with all e-mail servers ("federation mast")
- all apps and libraries and server components are 100% Foss
- interactive chat-shared web-apps can be used in other messengers
Woah! Only now did we discover a great blog post from @wq who discusses the progression from hosting a #Matrix , a #Snikket and a #SimpleX server, to now running a #chatmail relay runtimeterror.dev/self-hosted-…
It's an excellent read, with lots of good advise, including having a public "hello" profile and another unpublished chat profile for private chatting. #deltachat apps have pervasive multi-profile support (and multi-device support) so it's pretty easy to establish such a two-profile setup.
Beginning June we witnessed a sudden surge of Delta Chat usage especially in the US and Cuba. We don’t know the social dynamics behind it but it probably helps that Delta Chat apps resiliently work...delta.chat
We do not aim for #deltachat to be another social media app. No #ai summaries or suggestions. No public directory of contacts. No discovery via outside identifiers (mobile phone or email). Just you and your contacts privately messaging, in a solid simple user interface on all platforms. End-to-End encryption enforced on two layers. #chatmail relays know and retain nothing, no content or metadata. #webxdc apps allow for custom interactions on top of chats.
Contributors and donations welcome!
V2 #deltachat is rolling out after weeks of internal testing, a major milestone revising how end-to-end encryption works and bringing more beautiful contact and group profiles, direct access to chat-shared apps in the title bar and a "new email" action with setting a subject for those using a classic server.
Best of all, users and developers don't need to co-ordinate anything for upgrading to V2 despite the massive security rework behind the scenes :)
delta.chat/en/2025-08-04-encry…
With Delta Chat Version 2, chats are end-to-end encrypted, always and by default. Previously it was possible that chats without green checkmarks could contain messages without end-to-end encryption...delta.chat
head-ups #DeltaChat users! Want to help us testing the upcoming Delta Chat 2.X release? read here:
support.delta.chat/t/android-h…
Want to help us testing the upcoming Delta Chat 2.6.0 release for Android? Choose your flavor and mind your backups: 🍋 https://download.delta.chat/android/beta/deltachat-gplay-release-2.6.0.Delta.Chat
Hey folks. I've noticed #DeltaChat hasn't got a page in #Wikipedia. Do you know sources which would prove its notability so we could create a page for it?
Boosts appreciated. If you don't know sources, someone else might.
#AskFedi #Email #IM #Messenger #chatmail #chatmailrelay #FOSS #opensource #tech #technology #software
Two of our teams just gave talks at the @passthesaltcon 2025 conference in Lille:
@Xeniax tells the story of "federated messaging" waves and her usable security research, emphasizing "availability" as a key issue
passthesalt.ubicast.tv/videos/… --
@hpk starts off with prioritizing usable security and walks through #chatmail transport layer security goals and #deltachat end-point security status, upcoming releases and prospective work on improving metadata and other goals
passthesalt.ubicast.tv/videos/…
With the current massive user migration from X and Meta to decentralized social media such as Mastodon, the interest in federated communication infrastructures is gaining traction.Pass the SALT Archives
Hice un vídeo para que puedas enviárselo a tus personas cercanas, explicando lo fácil que es dejar #WhatsApp, y por qué es importante hacerlo. 💬
fediverse.tv/w/35Lvufq1XW8ZVBT… (@ivangj@fediverse.tv)
También disponible en YouTube por si quieres evitar rozamientos 😅.
#SoftwareLibre #PeerTube #Chat #Signal #XMPP #DeltaChat #Matrix
Today at DIFF in Freiburg: DeltaTouch running on PostmarketOS on a Steam Deck (with a Win7 theme), owned by @ell1e
#DeltaTouch #DeltaChat #postmarketOS
#deltachat is secure against server-side group membership changes but for a very different reason than #signal which keeps encrypted group membership data in a central store.
Delta Chat has _no_ central store but implements a rigidly tested #p2p group membership model where servers play no role github.com/chatmail/models/tre…
Both signal and delta chat are safe against recently published attacks against #whatsapp that can add members to chats, breaking end to end encryption. arstechnica.com/security/2025/…
The weakness creates the possibility of an insider or hacker adding rogue members.Dan Goodin (Ars Technica)
@Winter blue tardis🇧🇬🇭🇺 @Jayson Smith @Nick Giannak III If you are still testing deltachat, I managed to run my #chatmail relay and it's working for a few weeks for me.
I have created a groupchat where I'd like to invite other screen reader users.
As I have posted a few times recently, #deltachat people do really care about screen reader #a11y so while testing and something is not working the way you would expect lets describe it in details, and report it properly.
Here's the link to that group chat I'm talking about
i.delta.chat/#6FE1642916908F1A…
Comparing #XMPP against #email protocols is too limited. What sets #deltachat apart is *vertical integration* and being driven by UI/UX considerations. Cross-platform Apps and Bots use the Rust core library which connects with #chatmail relays and classic email servers based on a higher level API -- abstracting over SMTP, MIME, #OpenPGP etc. See chatmail.at
#webxdc apps in turn use an even higher level stable API abstracting over email/xmpp/... see webxdc.org/docs/
Chatmail provides FOSS infrastructure for interoperable, secure, speedy and reliable end-to-end encrypted messaging. Check out clients as Arcane Chat, Bots or Delta Chat today!chatmail.at
our friends over at @rpgp just published a monster milestone, humbly tagged 0.16 😍 with
- streaming decryption and encryption
- post-quantum-cryptography
- API streamlining.
#rPGP is a full Rust implementation of #openpgp which counts among the fastest and most compliant implementations today, and includes security audits. Note: #deltachat uses a restricted subset of OpenPGP, and follows best practices (eg using the same ed25519 keys implementation as #signal) github.com/rpgp/rpgp/
OpenPGP implemented in pure Rust, permissively licensed - rpgp/rpgpGitHub
As part of the project to port Delta Chat Desktop from Electron to Tauri1, we’ll showcase a setup where our Desktop app runs in Firefox and does not depend on Electron or Chromium anymore. This vid...delta.chat
