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 https://chatmail.at

#webxdc apps in turn use an even higher level stable API abstracting over email/xmpp/... see https://webxdc.org/docs/

Hi @delta

I am making updates to https://delightful.coding.social/delightful_activitypub_development and bumped into this interesting #SMTP to #ActivityPub proof of concept. Just a heads-up to make you aware, in case it is interesting for #DeltaChat in some way or other.

https://apubtest2.srcbeat.com/apas.html

Doncs és una bona opció tenir servidor #chatmail propi per #DeltaChat en un servidor molt baratet a Hetzner Cloud. Ja porta 28 dies funcionant a la perfecció.
chatmail va genial amb pocs recursos de màquina com és el cas.
A més, el sistema operatiu és #Debian 12, estabilitat a prova de bombes.

Considering that both #XMPP and #Matrix re-invented #decentralized communication while #email was already there, makes #deltachat more interesting.

The fact that DC didn't invent a new protocol for #InstantMessaging and just used the protocol which was already there, and also that how far has it gone, is mind blowing.

At first when I was chatting with @treefit, I already was developing a Matrix client(#chooj) for #KaiOS and it was the only decentralized IM which I was using and investing resources into. I was skeptical but then I thought it would be a good idea to invest into DeltaChat, as well as Matrix. His argument, of course, wasn't good. He was arguing that we need multiple options in the case one of decentralized IMs fail. However this convinced me to give DC a try.

But now, I see that DC has very unique advantages no other messenger has. Their moto is "playing the long term" game. Unlike Matrix which suddenly exploded, DC moves very slowly. As an advantage, DC is much more consistent, hassle free, has less bugs(in my experience) and has better UI/UX than many Matrix clients. But it has got several disadvantages. Matrix has tons more features which DC hasn't got or has added them just recently such as editing messages and reactions. And it is not yet suitable for public groups, like the ones we've got in the Matrix network.

Overall, if you want secure chat with friends or family or other people you trust, DeltaChat is a very good option and the experience is very good. And I haven't seen something like #webxdc in any other IM. However if you want something like #Discord guilds for a community, Matrix is the way to go.

BTW, DC currently lacks funding, thanks to what #Trump did with #OpenTechnologyFund(#OTF). If you can help in anyway, financial or otherwise, it will be extra valuable at this point.

Edit:

BTW, here are websites of webxdc and DC:

https://delta.chat
https://webxdc.org/

Edit2: Make sure to check WebXDC, apps shared in #P2P deltachat groups or DMs.

Whatsapp -> Meta ->
Telegram -> IA d'Elon Musk ->
Signal -> servidors AWS Amazon ->
#DeltaChat ->

our friends over at @rpgp just published a monster milestone, humbly tagged 0.16 with

- streaming decryption and encryption

- post-quantum-cryptography

- API streamlining.

#rPGP is a full Rust implementation of #openpgp which counts among the fastest and most compliant implementations today, and includes security audits. Note: #deltachat uses a restricted subset of OpenPGP, and follows best practices (eg using the same ed25519 keys implementation as #signal) https://github.com/rpgp/rpgp/

When I send a message using @delta, can people in control of the chat server see who sent it?

Can people in control of the chat server know what group I'm sending to, if it's a group chat?

As far as I'm aware, @signalapp prevents at least the first one, and has mitigations for correlation attacks (where one user sends a message, and the same 5 others happen to receive one at the exact same time, every time). Does #deltachat have that?

Am I missing something here?

By design, end-to-end-encrypting #deltachat and #webxdc apps only need ephemeral transport. It's a big deal. Let's compare:

- #matrix home servers maintain a cryptographic forever-chain of cleartext social-graph metadata.

- #WhatsApp servers maintain cleartext metadata visible to Meta.

- #Signal keeps encrypted metadata, hosted at GAFAM

#chatmail relays do not persist any social graph state, also not in encrypted form. A key goal of our designs: chatmail operators can sleep well at night :)

@delta is there any advantage for me using a selfhosted chatmail relay instead of my selfhosted docker mailserver when using #deltachat ?
I just plan to use deltachat in a family context where everthing would happen on my own mail server.

Hat irgendjemand schon mal versucht #deltachat für Benachrichtigungen aus Smarthomesystemen wie Nodered, Homeassistant etc zu nutzen? Oder gibt es ggf einen CLI Client mit ner API die man aus solchen Systemen raus aufrufen kann. Dementsprechende Bist könnte Delta Chat zu einer coolen Alternative zu Telegram machen.
#smarthome #homeassistant #nodered @delta

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 write messages and attach media, create groups, use #webxdc apps, setup a second device etc. all without any Internet. Once it returns queued messages are sent out and cause push notifications. #OfflineFirst is crucial for resiliency.

This week in #FDroid (TWIF) is live:

* #DeltaChat community meet and Desktop version
* #SessionMessenger network switch
* Find a better FOSS #Telegram client, now!
* Xed-Editor evil clones
* #APatch broken
+ 8 new apps
+ 183 updates

Quick read at: https://f-droid.org/2025/05/22/twif.html