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Beiträge, die mit Deltachat getaggt sind

I'm going to have to install a DeltaChat server now, don't I?

#SelfHosting #SelfHosted #DeltaChat
#selfhosting #selfhosted #deltachat

My only issue with #DeltaChat is that it's not compatible with #ProtonMail or #Tutanota. I think that's more of an issue with Proton and Tuta than it is DeltaChat, however.
#ProtonMail #deltachat #tutanota

#deltachat is geared towards private group chats. In small groups technical moderation is not so important. A subset of people can always create another chat simply and continue there. Technical admins can only help so much. Maybe it's even the admin that is the problem?

There are >100 people chats e.g. from #38c3 or #fossdem25 that work quite fine. But YMMV

If you want Telegram-style channels with public subscription, then yes, some administration is needed.
#38C3 #deltachat #fossdem25

Yes, I've just checked, and there is a message delete function.

How it works in terms of group moderation I'm not sure.

My basic understanding is each group member has the same rights/power.

I am unaware of an 'administrator' function though.

#deltachat
#deltachat

I wrote a #DeltaChat blog post for technical users who are skeptical about how it works

Everything You Think You Know About DeltaChat Is Wrong

https://blog.feld.me/posts/2025/03/deltachat-is-actually-good-though/

@delta

Everything You Think You Know About DeltaChat Is Wrong – Makefile.feld

I am smitten with DeltaChat... DeltaChat has been making massive strides lately and I think you should consider using it as your full time secure messenger.
blog.feld.me
#deltachat @Delta Chat

Hopefully I have set up @delta correctly :)

Feel fee to give it a try:

deltachat@neilzone.co.uk

Or you might need this link. Not sure.

https://i.delta.chat/#812EC9E7DE13357A15C6000E9BF801A2DD04BD42&a=deltachat%40neilzone.co.uk&n=Neil%20Brown&i=mhelK_A19JNmEUwKtV8UuTRe&s=8UL9dM22kFUJNPmcdi9X5YAo

#DeltaChat

Message privately on Delta Chat

Tap the invite link to start
i.delta.chat
#deltachat @Delta Chat

"but the email addresses are still exposed"

I can change my email address to another random one in the client -- even to a different chatmail server -- and all my chats will keep working. As soon as you send a message to your peers they will update to your new identity. This is a feature called AEAP -- Automatic Email Address Porting and hopefully soon we'll see a mechanism implemented that automatically enables forwarding of your old address to your new address (to not lose messages from people who don't know about your new identity yet), and then #DeltaChat can enable functionality to automatically rotate you through new anonynmous identities transparently.

https://delta.chat/en/2022-09-14-aeap

Delta Chat: Introducing Automatic E-mail Address Porting (AEAP)

The Delta Chat 1.32 releases introduced e-mail porting mechanisms (AEAP). They enable for e-mail what number porting does for mobile phone communications, i.e. to more easily change between communi...
delta.chat
#deltachat

The downside of our project approach was that we often got experts being very dismissive on re-using email and #OpenPGP ... and there still is some opposition which often subsides when actually trying #deltachat and #chatmail, looking at security audits and our strong usable security focus.

There may also be surprising upsides. The UK "Online Safety Bill" which attacks end-to-end encryption integrity seems to not apply for ... e-mail. Because everyone knows, e-mail is unencrypted, right? :)
screenshot of page 7 of https://www.legislation.gov.uk/ukpga/2023/50/enacted CHAPTER 7Interpretation of Part 3 55“Regulated user-generated content”, “user-generated content”, “news publisher content” (1)This section applies for the purposes of this Part. (2)“Regulated user-generated content”, in relation to a regulated user-to-user service, means user-generated content, except— (a)emails, (b)SMS messages, (c)MMS messages, (d)one-to-one live aural communications (see subsection (5)), (e)comments and reviews on provider content (see subsection (6)), (f)identifying content that accompanies content within any of paragraphs (a) to (e), and (g)news publisher content (see subsection (8)).
#openpgp #chatmail #deltachat

After trying out #deltachat and #arcanechat, I've discovered the #webxdc app store. My Dad loves #Sudoku puzzles, and I was tempted to play some competitive Sudoku with him. What assurance is there that there are no sketchy apps in the webxdc app store? Can these apps break out of their little jail, and root my phone? What would the #infosec community say? There's somewhat of a thread on the "threat model"/security of webxdc here (but I think it still needs more scrutiny):
https://support.delta.chat/t/webxdc-threat-model/3018
#puzzle #puzzles #competitive #game #multiplayer

WebXDC threat model?

Hi, I’ve just came across this WebXDC idea through its implementation in Monocles Chat (which does not appear to be working at the moment, but that’s another story).
Delta.Chat
#infosec #game #puzzles #multiplayer #puzzle #deltachat #arcanechat #competitive #Webxdc #sudoku

I think the only remaining feature I care about in #DeltaChat is better support for large attachments but that's a harder problem.

The comfy feature I'd like but has security implications would be link previews. There's a bot you can add to a group chat which will produce the "quick view" or whatever of a page which is a static HTML snapshot but traditional link previews are nicer as it's rendered as part of the original message.

Besides the security implications of it there's also the uphill battle of sites breaking link previews because of AI scraping concerns so they whitelist iMessage/WhatsApp/Telegram access which screws everyone else over. I see it with Pleroma sometimes -- links won't get a preview because they 403/404 or just don't include the meta tags
#deltachat

Decentralizers, attention! :)

Last #deltachat releases introduced stable #p2p group membership not found in any other messenger. Members can add/remove peers also while being offline, and when everything comes online again, everyone has the same consistent membership view. We formalized and ran a simulation model using #TLA+ (invented by Leslie Lamport of vector clock fame):

https://github.com/chatmail/models/tree/main/group-membership

and a complementary #pytest model with more corner cases tested here:

https://github.com/chatmail/models/blob/main/gmc/test_gmc.py

models/gmc/test_gmc.py at main · chatmail/models

Formal specifications for chatmail. Contribute to chatmail/models development by creating an account on GitHub.
GitHub
#p2p #tla #deltachat #pytest

yassss edited messages are about to land in #DeltaChat

#deltachat

allez je fais de la pub pour #Deltachat c'est du mail chiffré mais présenté et aussi rapide que de la messagerie instantanée. C'est fédéré (c'est juste du SMTP dessous), les serveurs sont très économes en ressources, ça marche même avec des fournisseurs d'e-mail traditionnels (pas tous malheureusement). Le cœur est écrit en rust, il y a des clients modernes pour iOS, Android, Desktops.

https://delta.chat/en/

Delta Chat: Delta Chat, decentralized secure messenger

Delta Chat is a decentralized and secure messenger app 💬 Reliable instant messaging with multi-profile and multi-device support ⚡️ Sign up to secure fast chatmail servers or use classic e-mail serv...
delta.chat
#deltachat

@bjoern Seit April 2024 ist die Benutzung sehr einfach geworden, als "instant onboarding" mit hilfe von #chatmail servern hinzufügt wurde, und auch sonst viele UI Verbesserungen eingeführt wurden. Ein 3rd party Erfahrungsbericht: https://gladtech.social/@avoca/114097638574628729 und dann gibts noch mehr beim #deltachat hashtag

Jupiter (@avoca@gladtech.social)

#deltachat Finally convinced my non-techy family member's to move from Signal to Delta Chat messenger.
GladTech
#chatmail #deltachat @bjoern@social.sengotta.net

With #deltachat #chatmail and #webxdc developments we aim to instigate a new modern foundation for secure E-Mail and a resilient Web without platforms. We are building a kind of #minecraft system for modern decentralized messaging.

But who are we building it for?

For all who need reliable trustable means of modern private communication.

While our work needs hackers and experts it's not designed for them. @tante raises interesting and important related thoughts https://tante.cc/2025/03/03/who-is-free-software-for/

Who is Free Software for?

For a while I have been arguing that maybe there are some issues with the whole “Open*” movements, their founding myths and ideologies (see for example my talk at Fluconf). This criticism comes from a place of love.
tante (Smashing Frames)
#minecraft #chatmail #deltachat #Webxdc @tante

https://arcanechat.me server reached 1500 users!!!

the server is using around 1GB of RAM, CPU is almost unused, and only 1.4GB of storage used for encrypted user volatile data, that is around 1MB per user on average!

the cost of self-hosting a #chatmail server for #ArcaneChat / #DeltaChat is really low! and you don't even need to trust the server operator or even the VPS provider if you are selfhosting since all is #e2ee and safe against #mitm thanks to the green checkmark in chats

ArcaneChat

Private chats for the family
arcanechat.me
#e2ee #chatmail #deltachat #arcanechat #mitm

#deltachat

Finally convinced my non-techy family member's to move from Signal to Delta Chat messenger.

Setup was a piece of cake and we now have 4 x iOS devices, 3 x MacOS laptops, 2 x Windows laptops, 3 x Android devices, including 1 x GrapheneOS and 1 x LineageOS,, and two Linux Mint computers connected seamlessly as one Family Chat group.

Not one single byte of personal information required nor a single SIM card needed between us, though of course we all have them.

The security benefits and other bonuses provided by Delta are great but the key here was a de-centralised messenger that allows easy setup for family groups across multiple platforms.

Well, that's it! I am completely open source finally. No Google account. No Apple ID. No Microsoft, Meta, etc accounts.

The only organisation's who have my real email address are my bank, my government and my education providers.
#deltachat

great stuff -- maybe use #deltachat hashtag?
#deltachat

hosting a chatmail server is always welcome but not necessary. Each chatmail instance can typically serve 10K's or 100Ks of users easily. Chatmail servers are more like routers than classic e-mail servers. They constantly forget messages, and #deltachat generally uses e-mail servers only as ephemeral transport, rather than persistent message storage.
#deltachat

Trying out #deltachat ( @delta ), and I'm really liking it so far! It is the first alternative messaging app that may pry me away from Signal. Especially once I'm able to #selfhost a chatmail server. The hard part, as always, will be getting other people to use it.
#selfhost #deltachat @Delta Chat

#deltachat community milestones:

Dec 2023: first #chatmail server

Feb 2024: iOS push notifications

March 2024: ETH Zuerich #security analysis

June 2024: Instant onboarding on all clients

Nov 2024: #P2P #webxdc realtime and home-screen apps

Dec 2024: rPGP #security audit, 20 known #chatmail servers world-wide

Jan 2025: new #webxdc store, UI integrated app-picker, webxdc push notifications.

Spring 2025: is coming :)

money used: ~600K EUR, a tiny amount compared to other messengers.
#security #p2p #chatmail #deltachat #Webxdc

für den Fall dass der Aufbruch der Verschlüsselung erzwungen wird bei zentralisierten Diensten wäre eine extra Kategorie/Einschätzung interessant. Threema(nicht eu) vs dezentral..

#messenger #whatsapp #signal #threema #briar #xmpp #matrix #imessage #line #session #simplex #deltachat #telegram #teleguard #viber
#signal #matrix #xmpp #telegram #whatsapp #messenger #simplex #briar #imessage #line #threema #viber #session #deltachat #TeleGuard

#deltachat benutzt jetzt sog. Chat Mail server. Man muss also nicht mehr seine E-Mail Adresse nutzen so. Anmeldung super easy und die Verschlüsselung sollte damit immer sichergestellt sein. Wir auch durch einen "grünen Haken" angezeigt.
#deltachat

Hat jemand schon Erfahrungen mit #DeltaChat gemacht?
Ist das benutzbar?
Safe?
#deltachat

Did you know that #deltachat literally shares cryptographic implementation code with #signal ? Both delta and signal use the ed25519-dalek crate ... Most messengers by now moved their cryptography to #rustlang . We did that in 2019. But in delta also all networking and message formats is implemented in Rust where other messengers (including signal) have a lot of platform specific code still.
#signal #rustlang #deltachat

Außerdem verfügt Delta Chat über einen "XStore", über den neben kleinen Spielen auch In-Apps installiert werden können, wie zB To-Do-/Shopping-Liste, Zeiterfassung, Rechnungs-Aufteilung, ein Mastodon Archive Reader, und viel, viel mehr.

Edit: Allerdings habe ich nach Installation einer solchen App nicht herausgefunden, wie ich si, verwenden kann?

#DeltaChat #Messenger #xStore
#messenger #deltachat #xstore

Mit den ganzen Entwicklungen in Amerika, mit Trump & Musk und ihren ganzen "Tech-Bros", scheint mir unklar zu sein, ob sie nicht auch in absehbarer Zukunft Non-Profit-Institutionen, wie zB Signal App zwingen könnten, Backdoors einzubauen, oder was auch immer denen gerade so einfällt ...

Neben Signal (was ich erst mal weiterhin nutzen werde), bin ich über Threema, Conversations (XMPP) und ganz neu: über Delta Chat, erreichbar.

Warum Delta Chat?
Nach einer Empfehlung habe ich mich damit beschäftigt und herausgefunden, dass es rein auf dem E-Mail-Protokoll basiert und alle Mails im Standard verschlüsselt werden.

Außer einer E-Mail, die über den Chat Client automatisiert generiert werden kann, braucht es keine weiteren Login-Daten - ist also ausgesprochen niederschwellig und datensparsam!

Eigene Mail kann verwendet, ist dann aber halt ggf. nicht verschlüsselt.

https://delta.chat/de/

https://invidious.privacyredirect.com/watch?v=Sku60gI7qFA

(https://youtu.be/Sku60gI7qFA)

#DeltaChat #Messenger #UnplugTrump

Delta Chat: Delta Chat, Dezentralisierter, sicherer Messenger

Delta Chat ist ein dezentralisierter und sicherer Messenger 💬 Zuverlässiges Instant-Messaging mit Unterstützung für mehrere Profile und mehrere Geräte ⚡️ Melden Sie sich bei sicheren, schnellen Cha...
delta.chat
#messenger #deltachat #unplugtrump

Currently playing around with https://github.com/MightyShadow702/v86Emu-webxdc which leverages https://github.com/copy/v86 into DeltaChat. Effectively allowing you to run a 32 bit .iso file inside DeltaChat as a webxdc application.

Right now tcp/ip is wired up with realtime communication over iroh 💥 🧠

#deltachat #webxdc #iroh #tcp

GitHub - MightyShadow702/v86Emu-webxdc: x86 emulator for Webxdc based on Copy's v86 emulator

x86 emulator for Webxdc based on Copy's v86 emulator - MightyShadow702/v86Emu-webxdc
GitHub
#deltachat #Webxdc #iroh #tcp

#deltachat
The hotspot trick is something that I didn't know. Great.
#deltachat

Multi device setup with #deltachat only works within the same WiFi even though @n0iroh is integrated, a production quality P2P networking library for all platforms, with hole punching etc.

You may regard delta's "same wifi" restriction for multi-device setup as an additional protection against phishing attacks like Signal lately suffered https://cloud.google.com/blog/topics/threat-intelligence/russia-targeting-signal-messenger

Moreover, if your wifi does not work you can do a mobile hotspot and use that for transfer. No DNS/internet needed. Thanks Iroh :)

Signals of Trouble: Multiple Russia-Aligned Threat Actors Actively Targeting Signal Messenger

Russia state-aligned threat actors target Signal Messenger accounts used by individuals of interest to Russia's intelligence services.
Google Threat Intelligence Group (Google Cloud)
#deltachat @iroh

This week in #FDroid (TWIF) is live:

- the faster you test 1.22.0 the faster the #MaterialDesign3 UI update is released. Do.Your.Part!
- #DeltaChat and ArcaneChat tell stories about #RIIR
- #emacs is more complete
- #CLT2025 sched app is live
- monitor your #BTC mempool

And 100 more apps in the news at https://f-droid.org/2025/02/20/twif.html

Rewrite it in FOSS | F-Droid - Free and Open Source Android App Repository

This Week in F-DroidTWIF curated on Thursday, 20 Feb 2025, Week 8F-Droid coreF-Droid Client 1.22.0 has been live for a couple of weeks now, the gist of the c...
f-droid.org
#fdroid #emacs #btc #deltachat #clt2025 #materialdesign3 #riir

this is great. I just played Dejeweled in Delta Chat and it worked well. Took me a bit to figure out how to get it and how to access it once I opened it in the chat program though. I think a brief, visual tutorial would go a long way. Right now, no one I know uses Delta Chat but using apps on it still makes it useful and is a selling feature to get friends and family interested. #deltachat #chat #apps
#chat #apps #deltachat

yes, choosing a server upfront is tricky especially if it feels like a life-time decision. With #deltachat you can migrate with all "guaranteed encryption" chats to another server later. So the initial choice is not so important and delta offers "create profile" and "agree and continue" without asking for phone number or email. People don't even need to know it's email. It works without people knowing that is a current design guideline for our ongoing devs
#deltachat

sure we as many others are very happy about pixelfed and all of the other fantastic Fediverse dynamics in so many corners 💜

We are happy with many people discovering that onboarding with #deltachat is easy ... while we are working on massive scalability to actually be able to move towards many hundreds of millions of users without incurring signal's cost and with an actually decentralized and resilient and blind transport layer. Not 100% there .. yet :)
#deltachat

Public service announcement:

1. If you want to link your #Fediverse profile to a chat account please consider just saying "DM me for #deltachat invite link" and NOT PUBLISH it to "all".

2. If you do publish invite links to groups and so on, please consider doing it with a dedicated delta chat profile that is not your private profile. Multi-Profile for the win.

3. We want to evolve the #securejoin invite link UX to better prevent unsafe practises. Involves tons of considerations. 💜
#fediverse #deltachat #securejoin

I strongly recommend using DeltaChat as a messenger and not mixing it with e-mail. In my experience, it is easier and more promising to familiarize people with #DeltaChat than to convince them to use #XMPP or #Matrix.
Im using DeltaChat with a group of people where Matrix failed.
@delta
#matrix #xmpp #deltachat @Delta Chat

Ich freue mich, dass @delta zu dem geworden ist, was es heute ist: eine echte Messenger-Alternative für den persönlichen Bereich.
#ILoveFS #DeltaChat
#deltachat #ilovefs @Delta Chat

it is extraordinary, how #deltachat #android, over all the years, with all the #features added, did manage not to grow in size

- version 1.0 from 2019 was 64 mb
- today's 1.54 is 53 mb :)
#android #Features #deltachat

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