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]

What if all public funding and all private donations to our efforts stop tomorrow? Users should be fine for years thanks to the wonderful world-wide community of #chatmail relay operators 💜 Relays are dirt cheap to run. Also, our developments are much cheaper and less complex compared to what […]

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 […]

While platforms like #matrix or #signal manage user identities on a server, #deltachat and #Chatmail are not platforms in the classic sense. They operate without a central registry, meaning there is no central gatekeeper to grant or deny access. This setup for private messaging naturally […]

PSA: The default relay server nine.testrun.org will be down for 15-30 minutes for another migration starting 11:00 CET.

We engage with decentralization protocols a lot (many nerds love to) but make no mistake: in the end, the app needs to work and be easy to use. #deltachat is a cross-platform FOSS offering, with guaranteed security levels, close to user expectations ... major factors in driving adoption! True […]

It took a while but it's shaping up nicely :) Post-Quantum Cryptography and Reliable Deletion, better known as Forward Secrecy, are going to become available in 2026 in #deltachat. For more details, including the recent #fosdem26 talk recording: https://autocrypt2.org

A lot of messaging systems try to reinvent the email system but many (signal, matrix, xmpp) took over one key traditional design which we actually dropped while retaining SMTP/IMAP compatibility: server-controlled identities. With #chatmail user identities are cryptographic and reside on end […]

Ever wondering where the QR codes in #deltachat come from? each of them is handmade, as everything in delta :) #fosdem

Now in the #fosdem live stream: Holger Krekel introducing #autocrypt2, a mechanism to protect against store-now-decrypt-later attacks, to be introduced in Delta! https://live.fosdem.org/watch/k4201 More details about the talk […]

Several of our teams will be at #fosdem26 ... we'll introduce our PQC and Reliable Deletion ("forward secrecy") efforts, and give an overview over multi-relay #chatmail architectures. Or catch us on the booth or some sunny place outside :) https://delta.chat/fosdem26.html invite link for […]

If you want to do a fun thing this weekend, maybe write a little webxdc app for your family or friends chats? There are many to fork from, see https://webxdc.org/apps and for development docs https://webxdc.org/docs And for development tooling https://GitHub.com/webxdc/webxdc-dev which simulates […]

#deltachat does - no bindings to public handles/numbers - no address-book upload - not do public contact or group discovery - not have critical persistent server state (!) Social identification is private, between people though ephemeral #p2p #e2ee messages. Servers see messages with […]

PSA We are happy about the wealth of privacy focused classic email providers (proton, tutanota, posteo, mailbox.org etc) but they are not geared for instant secure messaging. Do yourself, family and friends a favor and use delta with any of the many https://chatmail.at/relays Or setup a relay […]

Our stance simplified: we want to make private communications available to anyone on the planet. Problem: governments everywhere tend to want to control and contain private communications. While Iran and Russia might be contemporary poster examples trying to control private communication […]

several people reporting lately that #deltachat has become their main app: They are now spending more time in the chats, also with web apps, than in any other app. It may be a turn to more private communications when social media has become more toxic, obnoxious and dangerous in many places? […]

We are looking for an experienced Android UI developer for https://github.com/deltachat/deltachat-android. Native Java, close to the system, with minimal deps and fluff. Networking/encryption/persistence is not part of the job as it happens in https://github.com/chatmail/core Remote collab is […]

Don't believe those who loudly claim email can not avoid metadata! They are ignorant of our continuous works on minimizing metadata: DONE: - no phone number other identifying data needed - no cleartext "Subject" - no cleartext "To" - randomized "Date" - no IP addresses - […]

It's true: the more technical background and pre-conceptions you have, the more more likely you run into trouble with #deltachat 😂 Don't think so much! 😉

#39c3 .ending .. quite an enjoyable blast, and thanks to all the wonderful people just dropping by to say "thank you, it all works very nice for us"! 🥰 Certainly raised team spirits :) This year around, apart from one #chatmail relay setup workshop we didn't do […] [Original post on chaos.social]

Relax 😎! GPG is not OpenPGP! Yesterday, vulnerabilities were published https://gpg.fail but they don't affect #deltachat or any other #chatmail client because A) We never used #gnupg for anything; we use the modern #rustlang #openpgp implementation @rpgp, security audited multiple times. B) […]

Quite a few of #deltachat #chatmail and #Webxdc folks are already and will be around #39c3 -- on-site you can join a group chat (or send us a DM upfront) where we announce dynamically scheduled sessions. You'll find us mostly around Komona but also other places ... for more info […]

Short and succinct, @neil lays down the incredible danger of the UK's current political talk about "banning under 16y olds" from using online services. UK's "age assurance" is similar to #chatcontrol 's "age verification" plans: the end of privacy when using online services. Basically policing […]

On this day, two years ago, we published the first chatmail relay, https://delta.chat/en/2023-12-13-chatmail along with templates to replicate the setup, without needing any permission. Two weeks ago we thought there are 60 relays when a hacker handed in a 100+ list 😂 A bunch of knowledgeable […]

#chatmail relays are recently getting more artful in their web presence 🤩 Nice examples: https://darkdev.run in Ontario, or https://bloc7.icu/ in Warszaw. We estimate there are ~4 times more relays than in the published list at https://chatmail.at/relays Many relays are smaller ones, but […]

Your chat profile/identity: a tar file. Your social web app: a zip file. https://chatmail.at and https://webxdc.org are spearheading ever new and more fun ways to deny power to servers and platform billionaires. Unlike classic email servers, #chatmail relays […] [Original post on chaos.social]

#deltachat PSAs regarding the last 24 hours: 1) If you messaged someone about 20-30 hours ago, and did not get an expected response/receipt better "resend" (long-tap or right-click the message to resend). Unfortunately, not all queued messages at the crashing […] [Original post on chaos.social]

#chatmail relays really are the dumbest messaging servers in town, but having fun with each other 😂 https://chatmail.at/doc/relay

The default onboarding relay server nine.testrun.org will undergo some server maintenance in the next hours. We will keep you updated.

RE: https://chaos.social/@thefinalstrawradio/115679804496870004 Another nice surprise! A careful discussion and appreciation of our almost 8-year long running efforts, and its #deltachat and #chatmail artifacts. The "Signal contingency plan" comes complete with podcast, website and zine!

A few things #deltachat apps are doing positively different from #signal apps - easiest onboarding ever; not depending on phone numbers or other private data - support for multiple chat profiles/identities - decentralized servers, not depending on US-based GAFAM etc. - migration from one […]

On the occasion of SimpleX and Session getting cryptocoin-donations/funding ... we won't hide that most delta contributors are pretty skeptical of cryptocoin-circles. Exhibit 1: Webxdc apps -- mini apps that anyone can whip up -- and the declared motto still on […] [Original post on chaos.social]

#Telegram has a nice and fast UI, granted. But the 1 billion people using TG are at risk because of its big central database that any state security service craves for. Moreover, several anonymization proxy-bot offerings were hacked in 2024, identifying […] [Original post on chaos.social]

from a random community chat: "#telegram secret chats exist so you can share your #deltachat QR/link to get off Telegram 😇" In related news, Arte published a well-done documentary film about "Telegram, the dark empire of Pawel Durov" up (german audio only) […]

#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]

Well, maybe we need to be more clear what we are trying to do: #deltachat apps are a cross-platform private messenger suite, that aims to provide a consistent UX/UI for users with lots of experience using WhatsApp and Signal. Telegram has good fast UX but is hardly a private messenger (it has a […]