I have installed Delta Chat v.0.20.0 from F-Droid and set it up on a dedicated mail account. Initiating a chat to an address which does not have Delta installed works fine. However, how I can reply? Simply sending reply with text in the body does not seem to work, also a message with “Chat: Foobar?” as subject wasn’t displayed in the app.
The mails arrive just fine and the account is also checked, the mails are moved from new/ to cur/ in maildir.