Is it possible to have Delta Chat groups with mixed Delta Chat users and classical email user who use a classical email client? If yes, how do classical email users address the group? Delta Chat version 2.49 (Linux), 2.51 (Android)

No, it’s not possible. Either all messages are encrypted, or none.

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And it’s not possible to have a group with no encrypted messages at all?

The question is two-faced. You may focus on clients lacking any kind of encryption, but note that you could maintain encrypted contacts outside DC clients as well. I think as long as you patched those clients (or added the group ID header manually through the UI), such a client might be able to chat…

It is possible, but only for “classic” (non-Chatmail) profiles (e.g. Gmail): [image]

Groups with clasic email users (no DC-client)?

Mutual Help

ian June 10, 2026, 11:13am 3

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