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Delta Chat
@delta.chat
89 followers 0 following 140 posts
Secure decentralized messaging for all major platforms and then some. Reliable and instant by using fast and secure Chatmail servers, but also compatible with classic […]

🌉 bridged from ⁂ https://chaos.social/@delta, follow @ap.brid.gy to interact
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delta.chat
#chatmail does secure email federation that works. Using lean "relay" servers that enforce metadata-minimized end-to-end encryption.

There is a new little tool that checks whether two relays are interacting well for messaging, and how fast. You need a terminal […]

[Original post on chaos.social]
screenshot of a command installable with "pip install cmping". (venv) hpk@gamma:~$ cmping mailchat.pl nine.testrun.org # using accounts_dir at: /home/hpk/.cache/cmping CMPING mailchat.pl(jscsiirgr@mailchat.pl) -> nine.testrun.org(76yzfhcig@nine 64 bytes ME -> mailchat.pl -> nine.testrun.org -> ME seq=0 time=899.98ms 64 bytes ME -> mailchat.pl -> nine.testrun.org -> ME seq=1 time=537.55ms 64 bytes ME -> mailchat.pl -> nine.testrun.org -> ME seq=2 time=583.42ms 64 bytes ME -> mailchat.pl -> nine.testrun.org -> ME seq=11 time=555.63ms ... 64 bytes ME -> mailchat.pl -> nine.testrun.org -> ME seq=12 time=560.16ms 64 bytes ME -> mailchat.pl -> nine.testrun.org -> ME seq=13 time=543.74ms 64 bytes ME -> mailchat.pl -> nine.testrun.org -> ME seq=14 time=641.86ms 64 bytes ME -> mailchat.pl -> nine.testrun.org -> ME seq=15 time=649.15ms 64 bytes ME -> mailchat.pl -> nine.testrun.org -> ME seq=25 time=553.25ms 64 bytes ME -> mailchat.pl -> nine.testrun.org -> ME seq=26 time=583.68ms 64 bytes ME -> mailchat.pl -> nine.testrun.org -> ME seq=27 time=641.81ms 64 bytes ME -> mailchat.pl -> nine.testrun.org -> ME seq=28 time=650.70ms 64 bytes ME -> mailchat.pl -> nine.testrun.org -> ME seq=29 time=558.98ms --- jscsiirgr@mailchat.pl -> 76yzfhcig@nine.testrun.org statistics --- 30 transmitted, 30 received, 0.00% loss rtt min/avg/max/mdev = 537.554/596.469/899.980/71.002 ms
November 26, 2025 at 6:47 PM
delta.chat
@castaway see "security" section in wikipedias article https://en.wikipedia.org/wiki/Telegram_(software)
November 22, 2025 at 11:27 AM
delta.chat
The #chatmail #rust core is the base infrastructure library used by all apps and bots. It contains all networking, encryption, email processing and implements all the relevant IETF email standards. It's a single central development place with which the whole […]

[Original post on chaos.social]
screenshot of Overview at https://github.com/chatmail/core/pulse 103 active pull requests, 63 active issues 90 merged pull requests, 13 open pull reqwuests 40 closed issues 23 new issues "trade offer meme"| with a guy folding his hands, below the following text in two columns: i receive: PR review you receive: PR review
November 21, 2025 at 10:54 AM
delta.chat
Signal just released a "poll" feature with great fanfare, while all #deltachat apps already integrated a full suite of chat-shared apps, checklists, polls, shopping lists, calendar, editor + tons of games.

Better, anyone can create new apps, eg as […]

[Original post on chaos.social]
web page screenshot of https://webxdc.org/apps screenshot of official Signal account in Signal Android that announces "Signal polls are here" with three paragraphs of explanation.
November 19, 2025 at 1:50 PM
delta.chat
Any data that is collected on servers will eventually leak or be abused otherwise.

By design, no one can enumerate #deltachat profiles which are private and not published on any server. Conversely, #chatmail relays do not see or collect private data or metadata […]

[Original post on chaos.social]
beginning of the title of the research paper on the whatsapp number leaks https://github.com/sbaresearch/whatsapp-census/blob/main/Hey_there_You_are_using_WhatsApp.pdf
November 19, 2025 at 10:51 AM
delta.chat
hypercentralizers are not having a good day today -- #github has joined #cloudflare to block or slow down millions of folks from doing stuff.

Maybe a good time to checkout out this new ACLU article about the current Apple/Google app-store oligopoly […]

[Original post on chaos.social]
last paragraph of https://www.aclu.org/news/free-speech/app-store-oligopoly How we can push back In an increasingly centralized world, it will take very little for an abusive government to cause an effective organizing tool to disappear, to block an app that belongs to a critical dissenting media outlet, or to force invasive malware into a software update used by everyone. We need a shared infrastructure that doesn’t permit this kind of centralized control. We can disrupt oligopolistic control over software through user choice (e.g., preferring and installing free software), building good protocol frameworks (e.g., demanding tools that use open standards for interoperability), and through regulatory intervention (e.g., breaking up monopolistic actors, or mandating that an OS must allow sideloading, as the EU did with the DMA). The device you carry with you that is privy to much of your life should be under your control, not under the control of an abusive government or corporations that do its bidding.
November 18, 2025 at 10:07 PM
delta.chat
Denmark and other EU governments still pursue #chatcontrol.

They still want to permanently legalize client-side scanning but postponed making it mandatory.

They also want to increase age-verification controls which risk to ruin what little is left of privacy […]

[Original post on chaos.social]
What happened today? Behind closed doors, the Law Enforcement Working Party group approved the revised Danish Chat Control compromise with broad support. While mandatory scanning had officially been dropped, Article 4 of the new text reframes and reintroduces it by obliging providers of e-mail, chat, and messenger services to take “all appropriate risk mitigation measures”. This effectively forces providers to scan all messages, including private, end-to-end encrypted content. The same article outlaws anonymous communication by requiring every citizen to verify their age before accessing a service, kneecapping whistleblowers, journalists, political activists, and people seeking help who depend on anonymity. Article 6 further imposes a, digital house arrest and would ban minors from installing software which comes with a significant risk of grooming, such as WhatsApp, Instagram, and online games like Roblox. What happens next? The legislation now moves to the Coreper (Committee of Permanent Representations) for approval. Without major political objections, the Council will formally adopt its position. At this stage, both the Council and Commission unite in imposing mass surveillance on all 450 million citizens of the European Union and we enter a rushed trilogue. Unfortunately, while the mandate of the European Parliament does not suffer from the same flaws, the Parliament is traditionally known for giving in. What now? We raise our voices. Louder.
November 13, 2025 at 9:00 AM
delta.chat
We hereby challenge _all_ other messaging apps, FOSS or not, to provide a more convenient private onboarding experience than #deltachat

1. Install app
2. "Create new profile"
3. Enter nick name, tap "Agree and continue"
4. Tap "+" and "new contact" and […]

[Original post on chaos.social]
Start screen of https;//get.delta.chat apps which shows Delta chat logo (Greek letter delta) Secure decentralized chat "Create new profile" button highlighted Create profile screen With a field to enter a name ... "Fediverse chicken" was typed A link to the privacy policy of nine.testrun.org, the default onboarding chatmail relay A highlighted button "agree and continue" A button "use other server" Screenshot of newly created profile Title bar "fediverse chicken" Two chats in the chat list: "Device messages" with instructions how to setup contact with another chat profile "Saved messages" where you can "save" messages from other chats to memorize them
November 2, 2025 at 9:28 AM
delta.chat
Our project is one of constant exit planning and circumvention considerations ... as times and tech are getting more shitty.

We don't bet on a single basket, and not a single state or jurisdiction, and certainly not AWS/Google/Microsoft US clouds which run […]

[Original post on chaos.social]
Logo of the https://chatmail.at project
October 25, 2025 at 9:31 AM
delta.chat
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 […]

[Original post on chaos.social]
home page picture of https://testrun.org text title "Testrun.org" with the sub title "experimenting with the future of Email" the picture is a collage and shows the head of a dinosaur with an open mouth and many teeth trying to swallow a Zeppelin that seems to be flying directly into the mouth. Next to the dinosaur head is a classic "@" email symbol. the middle part is blue, and has overlay graphics of a moon-like planet and some old computers in the back the bottom part contains a picture of a sysadmin ca. 1975 in front of computer screens that show green letters on a black screen. There also are separately three cryptic letter chains that seem to translate to "Communications", "Command" and "Sigma". Another "@" sign is left of the computer screens.
October 21, 2025 at 4:12 PM
delta.chat
What an announcement from #telegram owner Pawel Durov! To provide just a few critical notes, he

- makes believe he is just a commoner, and not the billionaire owner of one of the largest message, media and metadata *cleartext* databases on earth

- skips over […]

[Original post on chaos.social]
screenshot of Telegram-owner Pavel Durov's message: < Pavel Durov @ : 10.7M subscribers * I'm turning 41, but | don't feel like celebrating. Our generation is running out of time to save the free Internet built for us by our fathers. What was once the promise of the free exchange of information is being turned into the ultimate tool of control. Once-free countries are introducing dystopian measures such as digital IDs (UK), online age checks (Australia), and mass scanning of private messages (EU). Germany is persecuting anyone who dares to criticize officials on the Internet. The UK is imprisoning thousands for their tweets. France is criminally investigating tech leaders who defend freedom and privacy. A dark, dystopian world is approaching fast — while we're asleep. Our generation risks going down in history as the last one that had freedoms — and allowed them to be taken away. We've been fed a lie. We've been made to believe that the greatest fight of our generation is to destroy everything our forefathers left us: tradition, privacy, sovereignty, the free market, and free speech. By betraying the legacy of our ancestors, we've set ourselves on a path toward self-destruction — moral, intellectual, economic, and ultimately biological. So no, I'm not going to celebrate today. I'm running out of time. We are running out of time.
October 10, 2025 at 4:29 PM
delta.chat
some new #Webxdc apps ....for personal or group journaling or running a minimal original "twitter" style social network in a larger chat group, end-to-end encrypted and private, without anyone outside being able to access anything except for the chat group […]

[Original post on chaos.social]
a look at the new webxdc apps at https://webxdc.org/apps "Tiny moments, a minimalist journal" from durian "Quiet Journal, a minimal journaling apps" from MapleDiss "PixelSocial", a pixelated social network from ArcaneCircle "Bable Dungeon, Portugues/English practises" from ArcaneCircle primary view on "pixel it" app posts, with two entries: - "Delta purple skull ghost" with some house corner visible and a light projection on the wall. Two people have "hearted" this. - "The delta ghost" with some picture of a classic ghost shape with a pixelated "delta" on top https://webxdc.org/apps/#arcanecircle-pixelit social media app runs full screen: showing someone posting a (pixelated) picture of a lake and beach with the text "I miss the sun" and one person answers "Also i am fine to ge ta bit of rain after all this sunny week" and another one "I am enjoying the rain vibes with chill music"
July 19, 2025 at 9:48 AM
delta.chat
Two of our teams just gave talks at the "Salt the Stack" conference in Lille:

@Xeniax tells the story of "federated messaging" waves and her usable security research, emphasizing "availability" as a key issue […]

[Original post on chaos.social]
Screenshot of Ksenia starting her "Always more secure talk" screenshot of talk on "Usable end-to-end security with Delta Chat and Chatmail". Slides are at https://merlinux.eu/x/pts25/slides.html
July 4, 2025 at 8:50 AM
delta.chat
Internet fragmentation is real in many countries and regions today but did you know that this "Sometimes-Internet" was the reality of the 1980ties when #email evolved?

#chatmail relays are cheap, secure, fast, ephemeral and resilient server setups for the […]

[Original post on chaos.social]
Chatmail logo ... The classical "@" sign but with a chat bublle on the lower left https://chatmail.at
June 28, 2025 at 8:11 AM
delta.chat
We used to look closely at #whatsapp Usability/UX. Not anymore.

Meta is enshittifying WA to become a social media app, charging companies for access to followers, showing ads, and pushing AI slop down the throat of billions of people.

#deltachat remains all […]

[Original post on chaos.social]
Screenshot of article https://www.theverge.com/news/693310/whatsapp-ai-message-summaries-meta Showing the headline "Whatsapp rolls out ai generated summaries for private messages" if this thing (meta AI icon) is triggering you, probably it's time... Switch to Delta Chat, visit https://get.delta.chat in 5 min your chats will be freed. Screenshots of android and desktop delta chat apps from the https://delta.chat website
June 27, 2025 at 7:03 AM
delta.chat
Overheard last night from two users in #cuba

user1: "the people are currently in need not only to save data plan but also to have more security in their conversations"

user2: "also stability. Right now the whole of Guantanamo is in blackout with problems in […]

[Original post on chaos.social]
Las personas ya estan necesitando no solo ahorrar sus megas si no también tener seguridad en sus ' conversaciones Las personas ya estan necesitando no solo ahorrar sus megas si no también tener seguridad en sus con... Ademas de |la estabilidad. Ahora mismo todo Guantanamo apagado con problemas en varias radio bases por el lio de la corriente. Y yo aqui - .ablando como si nada L 8 03:14 E ~ Cuando WhatsApp no se me conecta . - : spanish chat message, translated to english: And then in another conversation: "I can tell you that in this moment I don't have electricity and WhatsApp, telegram and Facebook Messenger don't manage to connect, on the other hand this one is fully functional"
June 22, 2025 at 12:41 PM
delta.chat
Everyone returns to email in the end. We are there already. #whatsapp wants you to add your email to secure your account ... despite all the nay sayers and numerous well funded attempts and claims to kill #email not even WA can do it. #deltachat and #chatmail […]

[Original post on chaos.social]
Whatsapp message suggesting to add your email address for extra security
June 18, 2025 at 6:39 AM
delta.chat
#whatsapp claims end to end security of content but:

- ties your identity to a phone number
- owns your identity
- can see who messages whom and who is in which group etc
- forces you to send local search in your private chats to Meta AI
- does not allow to […]

[Original post on chaos.social]
Whatsapp broadcast message to users. *Not even WhatsApp can see your personal messages* That includes text messages, voice messages, photos, videos, calls, and more. They’re protected with end-to-end-encryption, because we’re always committed to protecting your privacy. Screenshot of mainmpage at https://delta.chat
June 7, 2025 at 6:56 AM
delta.chat
The last two days saw the number of push notifications spike. Sometimes 80K Google Play push notifications happened per hour, while the baseline was more around 10-20K. These spikes probably indicate Internet availability. #deltachat is offline-first: you can […]

[Original post on chaos.social]
a graph showing "Direct push notifications for the last hour" On the X axis it starts around May 24th 7:30pm and goes until May 26th 7:30pm. On the X axis it goes from 0 to 80K notifications for the last hour. There are two plot lines: - Apple push notifications which are in the range of 7K and 15K notifications in every hour. - Google Play notifications which is between 10k and 80k notifications per hour. There are around 5 spikes that go up to 70k or above 80k notifications in every hour.
May 26, 2025 at 5:40 PM
delta.chat
It had to happen: in-chat multi-player #quake III Arena #Webxdc app, running over @n0iroh and using the fine work of https://ioquake3.org/ folks. Quake3 app is 1.2MB but you need to download once a game file of ~50 MB. It's only one level […]

[Original post on chaos.social]
screenshot of Quake app at https://webxdc.org/apps/#wofwca-quake3 A screenshot of a Delta Chat group chat where a quake3 webxdc app is posted, showing the Quake logo, and there is a "start button". Wofwca (the author of the quake webxdc app) immediately is ready and joins the game. A short while later there are three people from the chat playing. screenshot of an in-game quake situation where the player just "fragged Holga, 1st place with 16" (kills) Screenshot of in-game quake with a player looking down on a situation where a rocket launcher just exploded.
May 20, 2025 at 9:53 AM