I don't have any idea how to find out if it's Bridge or ProtonMail itself. I propose Proton Bridge to send messages from DeltaChat as-is (with Autocrypt headers, no additional parts, etc)Īnother consideration: since I can not test ProtonMail + DeltaChat without Bridge, I don't actually know where that 'modification' happens (is it Bridge, or ProtonMail server side). ProtonMail, on the other hand, seems to break things. send mail as-is, without modifications), and DeltaChat works. Turns out, good old ('stupid') mail servers work fine (i.e. I was trying to chat with people on DeltaChat (both direct 1-on-1 direct email messages, as well as groups messages) using my ProtonMail bridge. Send encrypted messages from DeltaChat user1 (using proton mail) to DeltaChat user2 (using generic mail server, like or ).Install and configure DeltaChat mail client.Install and configure ProtonMail bridge.Messages sent are modified by bridge (removed Autocrypt headers, added 'Empty message' part) Steps to Reproduce Messages should be sent as-is (with Autocrypt headers) Current Behavior
