Signal had issues though...!

The biggest issue that I know of it is that they rely on AWS.

What issues are you referring to?

Thanks btw, because you made me think to add Delta Chat. I'm thinking it's the best longterm solution that I've seen.

Delta Chat is based on email which leaks metadata like a sieve.

I would not use it for any kind of activivism. You're one warrant away from having your entire social graph mapped out.

The contents might be end to end encrypted but who you're talking to isn't and all those people are susceptible to rubber hose decryption.

just because #DeltaChat uses the email protocol you are making some wrong assumptions that only apply to classic email, sure if you go doing activism using #gmail that is not safe, but to use Delta Chat, you don't need to provide ANY personal data / metadata and hence can't leak metadata, you can create an anonymous account for a protest and throw it away afterwards, if cops get your phone they get random contacts not phone numbers unlike in #Signal etc.

@SrRochardBunson @VeroniqueB99

to make the point clearer, here's an example of a real E2EE message that federated between two Chatmail servers

Which metadata here is sensitive? Not the subject, it's faked as "[ ... ]". The real subject for the chat/group is included in the encrypted body along with all the other chat functionality.

There are no names. There are no client IP addresses. Every header except the ones needed for verifying the signature/authenticity or for the email to actually be processed properly (MIME-Version, Content-Type, etc) have been scrubbed.

DeltaChat turns email servers into dumb routers of encrypted data packets.

Consider how HTTPS / port 443 have been repurposed to do many many things other than transmit HTML. This is what DeltaChat is doing to email.

"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