Just installed @delta and was under the impression that it was email based. I expected to have to put in some email credentials and use my local email server. But instead it created a disconnected profile and just uses IMAP as a transport?

delta.chat/en/help does not make clear how this actually works.

Decentralised is a great buzz word, but without better description of how it works makes it difficult to trust.

delta.chat/en/help#security-au… doesn't mention architecture, just encryption.

in reply to Tiziano

@tizianomattei
There are already more relays,
chatmail.at/relays lists some of them. This page is reachable through the "Use other server" option during profile creation. At the end of the page there is a link to chatmail.at/doc/relay/ with the documentation on setting up your own relay. You can also use any IMAP+SMTP server, especially if you already have one, but be aware of rate limits and spam filters, and you likely don't want to reuse your existing mailbox for chatting.
in reply to keverets

so yes, it is email underneath. A random account was created for you. If you try to login to a Chatmail relay server with a random username and password it automatically registers an account for you if nobody else owns that account name. This is safe to do because the Chatmail relays do not allow sending or receiving messages that are not PGP encrypted, so it cannot be abused for spam.