@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

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

1 cent per five years .... is the current marginal hosting cost for a #chatmail address, with which #deltachat apps facilitate world-wide private messaging including interactive #webxdc apps that run end-to-end encrypted in any chat group.

<1 Million EUR per year is the estimated marginal hosting costs for 350 Million EU citizens. Such scaling requires, however, research and development, including careful UX and #cryptography work. Related writing from @gordon

newsletter.squishy.computer/p/…

#chatmail relays can serve 200k+ users on a small physical machine, are easy to setup and even easier to maintain. Chatmail relays enforce end-to-end encryption and rely on cryptographic verification for interoperability instead of IP reputation and spam checking magic. Tomorrow (Sunday) evening, @compl4xx will give a hands-on setup workshop in Hamburg cfp.eh22.easterhegg.eu/eh22/ta…

#easterhegg2025 #eh22

How to setup a chatmail server, optimized for Delta Chat Easterhegg 2025

With Signal, Whatsapp, and other centralized messengers suddenly running their servers in an authoritarian territory, we need a decentralized alternative.

^{cfp.eh22.easterhegg.eu}

The trajectory of E2E-encryption is about de-platforming: There shall be no central machines that can control the edges/peers, and the social groups and virtual centers they freely form.

Our #deltachat R&D around #chatmail relays and #webxdc apps all aim to realize such a "zero-platforms" fully E2E-encrypted interaction model. However, this is *not* just about cryptographic cleverness. Rather it is about usable anti-authoritarian designs, as explicitly stated in January delta.chat/en/2025-01-23-webxd…

Delta Chat: Replacing billionairish platforms with ZIP files

How can we evolve and deploy web apps without allowing developers or operators to become a “billionaire in the middle”? There are many ways to try to address this challenge and some involve the tec...

^delta.chat

new security milestone reached: #chatmail relay servers are hardened to only transfer end-to-end encrypted e-mail with metadata minimization. No cleartext message can enter or leave the secure chatmail network anymore.

We now talk about "chatmail relays" rather than servers as they only ephemerally store messages until delivery. Dirt cheap to run.

We opened up our #rust "chatmail core" infrastructure library and set up an overview of the community driven ecosystem ...

chatmail.at

#Signal took a huge bet that running on US big-tech toxic infrastructure is fine because its groundbreaking and industry-shaping cryptography is crafted to neutralize it and keep users safe.

But is it really feasible to live on toxic infrastructure in the longer run?

#deltachat rather takes a bet on the massive e-mail server network and interoperable protocols, and on #chatmail servers which enforce message encryption and metadata-minimization.

Delta is for when centralization turns sour.

There is no shortage of startups and enterprises animated by, or outright proclaiming, replacing e-mail as the de-facto open internet messaging standard. VC Investors are forever fascinated by funding such endeavours. #matrix #simplex #slack etc are examples.

#deltachat endorses e-mail but reconfigures and repurposes it to serve for interoperable instant messaging. The #chatmail server network relays end to end encrypted e-mail only, and servers are reduced to dumb store-and-forward relays.

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? :)

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 tante.cc/2025/03/03/who-is-fre…

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)}

The #chatmail #fosdem talk from @compl4xx is public. It goes into topics such as

- why chatmail servers?
- how to setup a server with your child
- (avoiding) spam filtering
- metadata and guaranteed end to end encryption in #deltachat
- #cryptographic #interoperability for email message routing

Thanks to attendees for the great energy even if was the last talk on the day and also for questions and conversations afterwards!

ftp.fau.de/fosdem/2025/k4601/f…

It is possible for #chatmail users to communicate with classic email users who have published their public key.

You just have to do manual chatmail registration, save your login details and private key securely, and use it with something that supports #pgp like #Thunderbird or #Mailvelope.

Upcoming events:

We'll give two talks at #FOSSDEM about #chatmail and #deltachat in the modern email devroom, on Saturday late afternoon: fosdem.org/2025/schedule/track…

The friday before, we'll probably also appear and talk about about #webxdc at the #Matrix barcamp.

Sunday morning, our friends from @n0iroh namely @flub, will give a talk about the P2P-iroh network architecture fosdem.org/2025/schedule/event…

Otherwise, you'll find us mostly around #OFFDEM for chatting and more ad-hoc sessions.

FOSDEM 2025 - Building Peer-to-Peer QUIC

^fosdem.org

We know of many #chatmail servers from Vladivostok to the US but the one from @adam_jurkiewicz might have the most intriguing design jurkiewicz.chat/ :)

With mobile Delta Chat apps, a chatmail web site allows users to click a link to create an instant chatmail profile without asking any personal data. No permission needed from Delta Chat developers to run a server, and we never learn e-mail or IP addresses from their users.

Decentralized interoperable onboarding with secure #E2EE :)

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

#righttoexit

Before you ask, this is not standalone. For that someone would need to compile #deltachat_core to wasm and setup some WebSocket proxy because websites are not allowed to open raw TCP connections which are the basis of IMAP and SMTP.

But not impossible, as we could decide to make such a "WebSocket to IMAP/SMTP"-proxy part of the #chatmail project.

Open Source spotlight from @ktn -- including an interview with @r10s about past and future challenges with #deltachat and #chatmail ...

infoservice.heise.de/ct-openso…
(german text)

#deltachat_desktop version 1.46.0 is now released:

🐣 New Onboarding: ⚡️Sign up to secure fast #chatmail servers or use classic e-mail servers

💻 Collapse chat list on small screens or window sizes
📋 Accept images from clipboard in QR reader
🖼️✂️ Image cropper for profile image selector
📌 Webxdc windows now remember their last position and size
🚀 Shorter startup times on newer Mac (through native ARM builds)

get.delta.chat

view exact rollout status at github.com/deltachat/deltachat…

#deltachat

Delta Chat: Get Delta Chat

Minimal requirements: Android 4.1 Jelly Bean or iOS 12, iPhone 5s or iPad 5/Air/Mini 2 or Windows 10, macOS 10.15 Catalina, Ubuntu 18.04, Fedora 29 or Debian 10 or compatible systems. The desktop v...

^{get.delta.chat}

The #EUGoingDark 42-point plan for after the election has it all: breaking e2e encryption, "lawful" data retention, prohibiting encrypting metadata, threatening jail to developers for non compliance ..... If we thought authoritarian political currents are moving against privacy then this is an entirely new level ... patrick-breyer.de/en/first-ins…

P.s. we need more #chatmail servers and contributors so that our #deltachat app-dev conglomerate provides resilience against such authoritarian pipe dreams

First insight: 42 key points of the secret #EUGoingDark surveillance plan for the new EU Commission

After Sunday‘s European elections, the EU is planning to reintroduce indiscriminate communications data retention without suspicion and force manufacturers to allow law enforcement access to digital devices such as smartphones and cars.

^{Patrick Breyer}

SimpleX recibe venture capital, si recuerdo bien, yo no me aferraría mucho a su futuro, mira ejemplos recientes como #Skiff (blog.cryptpad.org/2024/02/15/n…)

También, lo de identificadores anónimos es algo que se puede conseguir en otras plataformas, por ejemplo en Delta Chat con instancias de #chatmail

De las app P2P creo #Jami es la más recomendable

No one cares about open-source, until …

If you follow privacy news, you have probably heard that Skiff, an end-to-end encrypted productivity suite, announced that it has been acquired by Notion. We could not resist chiming in since Skiff was compared with CryptPad in the past.

^{blog.cryptpad.org}

We just refined the user facing "download" page to include instant #chatmail onboarding instructions get.delta.chat

Did you know there also are first independent #chatmail setups from friendly third parties, eg mehl.cloud and mailchat.pl/ all nicely interoperable and fast?

#chatmail actively develops here github.com/deltachat/chatmail/… ....

Delta Chat: Get Delta Chat

Changelogs Desktop Android iOS Core The desktop versions do not require Delta Chat to be installed on a phone. Minimal requirements: Android 4.1 Jelly Bean or iOS 12, iPhone 5s or iPad 5/Air/Mini 2...

^{get.delta.chat}