Delta Chat doesn’t have their own servers but uses the most massive and diverse open messaging system ever: the existing e-mail server network. Chat with anyone if you know their e-mail address, no need for them to install DeltaChat. All you need is a standard e-mail account. How does Delta Chat protect my Metadata?
Sounds slow? It’s using Push-IMAP to make it fast. List of recommended Email providers.
A covered pick. Anyone can use it as a private drop-in, with no setup or know-how. Enough for most people. Threat levels
Riding the existing email network instead of running its own servers is a clever trick, since anyone with an address is reachable and there is nothing new to sign up for. The catch is inherited from email: metadata like sender, recipient, and timing leaks the way mail always has, even when bodies are encrypted. Smart for reaching people on infrastructure that already exists; not the choice when traffic analysis is your worry.
Measures the security configuration of the tool's own website, not the privacy of the product itself. A strong tool can still score low here.
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