Delta Chat

Our last blog post is from spring, and many new features released since then ... we are just too busy working on new features, and maximizing chat resilienence in the face of broken single servers. There are btw minimum 600 #chatmail relays world-wide. How do we know? We are going to tell you […]

#deltachat is made to be a reliable and resilient messenger for private groups, friends and family. If you want to use it for joining or creating "public groups", please do yourself a favor, and create a dedicated "public profile" by tapping "create profile" and then use it to join public […]

Who ever is in the vicinity of Hannover in lower sachsony this coming Friday, is invited to consider joining one of our long-term contributors for an afternoon session on "the new and old internet" in the Auditorium at https://liminale.digital/ Likely in german language.

#deltachat is now evolving for 9 years. Among the currently active 15-20 contributors a majority joined 5+ years ago, with some joining in the very first year and a few only joining last year. Patience and perseverance is underrated when it comes to producing something that challenges the […]

Happy birthday to the CCC 🎉 45 year birthday 🎉 We are happy and grateful to be part of the chaos crowd and especially thank all the volunteers and organizers who made and make everything possible over the decades, truly outstanding and a beacon of rare normality […] [Original post on chaos.social]

We're flattered! @digitalcourage, one of the oldest digital rights organizations in Germany, just recommended using #deltachat They included a fantastic, well-structured article in German on how to get started, with lots of good background info for those who seek it […]

next #deltachat #ios version is coming with #liquidglass 🥛 thanks Amzd for the work. though frustrating being forced by #bigtech to do things that may not be loved and feel superfluous, it's wanted by many meanwhile. there are still some things to tweak, we […] [Original post on chaos.social]

Congratulations and shot out to our long-term collaborators from the @n0iroh project for releasing Iroh V1! A major ugprade of the probably best Peer-to-Peer Rust networking library today: https://www.iroh.computer/blog/v1 In case you missed it: When running apps like […]

Telegram is an extreme security risk for its users, its developers and operators, holding data and metadata for over a billion people on central servers! Our decentralized zero-metadata messaging approach is diametrically opposed to such big-platform designs […]

RE: https://mastodon.bsd.cafe/@stefano/116702145454686241 The world-wide #chatmail relay network is growing in various wonderful ways. #freebsd joined the world-wide federated secure communication party and BSD cafe offers a public relay at https://chatamil.bsd.cafe :) Thanks @stefano @feld and […]

Reminder: There are no accounts in the classic sense anywhere with #chatmail or #deltachat. It's all private profiles on end user devices which co-ordinate in a #p2p fashion. Chat profiles *use* email (relay) addresses for transporting messages through a […] [Original post on chaos.social]

It's hard these days to find a unifying description, or know about all the people and communities involved in #deltachat #chatmail #webxdc developments. One shared sentiment probably is wanting to develop anti-authoritarian technologies and cultures around it, and being opposed to authoritarian […]

A note on "#deltachat is going proprietary with #chatmail relays": 1) It's all based on IETF standards, with configuration and custom integration code fully FOSS and documented at: https://chatmail.at/doc/relay/ with hundreds of permission-free deployments. 2) We know of several alternative […]

What do you think is unique about the #deltachat project in the realm of secure cross-platform messaging? You tell us :)

Reminder: There are no accounts in the classic sense anywhere with #chatmail or #deltachat. It's all private profiles on end user devices which co-ordinate in a #p2p fashion. Chat profiles *use* email (relay) addresses for transporting messages through a […] [Original post on chaos.social]

The tale of "convenience" is a bit of a trick. A lot of corporate provided services maybe were somewhat convenient a decade ago, but they are now increasingly authoritarian, and people tend to ignore how much time they steal. Total number of hours spent solving captchas or consent screens with […]

Good news among the bad news! If the recent #0day attacks against Linux kernel+servers were launched against #chatmail relays, privacy of chatting with #deltachat is preserved. Why? Because we already assume the server could be actively hostile, and still not read or see any avatar, names or […]

We don't think any institution or state has the right to prevent families and friends from private chatting, physically or digitally. But the Cyber Authority China (CaC) seems to take offense: - they made Apple remove #deltachat iOS for mainland china - their […] [Original post on chaos.social]

Congrats to #protonmail for beating us on introducing Post-Quantum Cryptography into mail messaging! No worries. We'll implement https://autocrypt2.org which additionally offers reliable deletion / forward secrecy during 2026 :) We are working with Proton cryptographers on OpenPGP […]

RE: https://chaos.social/@delta/116505223145222985 All of the advances in #deltachat apps and the growth of the #chatmail relay network, wouldn't be possible without public funds and private donations, an estimated 800K EUR in 2026 ❤️ money goes to ~16 FOSS contributors with no money left for […]

We’ve been busy building and releasing but it’s high time to share some major news: @sovtechfund is investing nearly €500K into #chatmail This 18-month commitment supports chatmail maintainers keeping the core infrastructure secure and evolving, which is the backbone for: #DeltaChat […]

Parla is no longer depending on DeltachatDesktop to work, it's now able to create, transfer profiles and relays by itself. Looking forward distros to help me draw the best way to ship a separate jsonrpc server, maybe even sandboxed separately from the UI app […] [Original post on infosec.exchange]

"it's always the receiver that determines the meaning of a message" is a famous opening quote at the first symposium on self organizing systems in Chicago, 1959. This and many other findings from those circles re-appear in our day to day discussions. We are doing next steps towards automating […]

Making sure that deleted messages are actually deleted and unrecoverable is more involved than most folks think. The FBI could recently recover deleted Signal messages from an iOS phone because the notifications you see on your phone were stored in an extra database. Apple has now fixed this […]

#deltachat user profiles are private and invisible to the public. No one can discover you, or your children, via phone numbers or any other public handle. Chat profiles exist only on user devices. No PIN and no "SMS verification code" ever asked or needed. The lack of "public discovery" also […]

This morning nine.testrun.org was briefly unavailable, some network problem. A good time to remind everyone to add a second relay to your #deltachat app: 1. Go to https://chatmail.at/relays randomly choose one of the listed relay pages and copy the invitation code to your clipboard 2. In delta […]

"Popularity is overrated" is an often occuring phrase in our circles. Which is of course nonsense because only what is popular, counts, right? Only what everybody else does is a valid choice, right? #deltachat #chatmail and #webxdc are used in private places and […] [Original post on chaos.social]

Apart from the new #Gnome effort, there also is an interesting experiment of a #Rust terminal-client with #Ratatui -- for others to start from should they feel they need some enjoyable distraction :) https://git.sakamoto.pl/j-g00da/deltarat-experiments #Chatmail clients typically use the Rust […]

Here we go! The first release of my native Delta Chat client for GNOME is out! https://github.com/trufae/deltachat-gnome/releases/tag/0.2.0 cc @delta @gnome i'm using it in daily basis, and it's quite stable right now, but still lacks many features from the […] [Original post on infosec.exchange]

RE: https://chaos.social/@delta/115866917974514933 Do you want to live in a world where private digital communication is not possible anymore? That's a growing reality for many people world-wide. Private communication is extremely important to salvage into the digital realm and it's not just […]

#deltachat contributors range from age 16 to 65, spanning diverse genders and even more countries and cultures. We have many discussions, and also conflicts but we usually don't carry those out in big public groups but rather go for 1:1s and generally small-group discussions. There is no central […]

Under the hood, we are using IETF Internet Messaging specifications commonly tagged as "email". Sounds old, right? Actually there is a lot of new stuff going on! For example, #chatmail apps now fully support: - RFC9788 ("Header Protection") to achieve minimal metadata - RFC9580 ("OpenPGP") to […]

After three intense months of work from more than a dozen contributors, #deltachat 2.48 releases are rolling. Maybe the most feature-packed releases ever? - "zero metadata" messaging - native Audio/Video calls on Android and iOS, as well as UbuntuTouch - Group and Channel descriptions - A […]

RE: https://pouet.chapril.org/@agenda_du_libre/116293754039872689 swiss news: a new chatmail relay https://chatsecure.ch ... hosted in denmark, however :) also there is an upocoming event in Môtiers in two days. And there was a podcast featuring delta chat last year […]

End-to-End Encryption is good but metadata protection counts as much. Names, group descriptions and memberships, avatars, who talks to whom ... Both #deltachat and #signal go to great length to protect all the metadata that WhatsApp grants itself gratuitously […] [Original post on chaos.social]

The last two weeks saw a dev gathering in the black forest from several in #chatmail, #deltachat and #webxdc communiities, also joined by @n0iroh and @rpgp folks. The tech demos and hacking results we presented to each other, were pretty mind blowing and tracing […] [Original post on chaos.social]

Fun funding fact: If we had 10 times more money to develop #deltachat , the #chatmail relay network and the #webxdc secure mini app ecosystem, we would still have ten times less than what signal has (let alone Whatsapp or telegram). But we don't want to increase nudging people for donations, as […]

I know #Signal is very popular, but at least for me, using NVDA, the desktop client is far less screen reader friendly than the mobile clients. The mobile clients work far better for me, but I honestly don't use my phone for much these days outside of being a media player that can make phone […]

OH in some chaos circles "#deltachat is the new emacs of operating systems" ... We are not sure about that 😂 but what we do know is we are soon bringing out releases that we have been working towards for 12 months in multiple already released steps. The funniest thing? Nothing changes on the […]

Our strong focus on end to end encryption and zero metadata does mean that one of the original project notions of "you can use delta chat as a lightweight cleartext email client and your contacts don't need to care" was deprioritized since some time now and remains available rather for […]

some insights from #deltachat forum gardening 🌸 - we’re getting about 7 new feature proposals per week, with over 1k ideas shared so far - we aim to keep things simple and focused, so we often have to say "no!", but: - we do listen: over the years, we’ve fulfilled about ONE THIRD of your […]