unwat I'd hope not. If so, that's a huge problem. I, personally, don't know what is contained in notifications from signal. The dev I read wrote that it's a simple "hey update" kind of thing.

There's nothing to "hope". One endpoint (destination) is your phone. The other is SIGNAL'S SERVER (source).

I read this as a 2nd hand claim. Maybe it's better to find real proof either way. Theoretically, a loaded notification with metadata is possible, so is a notification to trigger a "phone home" from the Signal server.

No its not a "second hand claim". Its an unavoidable fact of how networks work.

    Sorry, I must have misunderstood part of what you said. I thought you meant by endpoints you meant phone to phone, not phone to server, so that's my bad. It's obvious that Google knows a phone is receiving Signal notifications.

    The other part of what I said, the 2nd hand claim, wasn't about networks at all. It was about what is included in the notification visible to Google. The 2nd hand claim was that nothing sensitive is included in the notification visible to Google.

    Anyway, since 2nd hand claims I read on Reddit aren't that authoritative, I went through the trouble of looking through the Signal server's code and I read up a bit on FCM messaging. Their FcmSender just takes a device id, data, notification type, and a notification priority. Elsewhere in the code, in their PushNotificationManger, when a push notification is built for a Signal message, the data is set to null. So, it's verified. Signal push notifications don't include any sensitive information.

      Thank you very much for researching this topic @unwat 👍

      @abcZ feel free to contact me over Matrix or Telegram if you think that I misunderstood you.
      I have a deleted a few of your posts because (in my opinion) they were violating our rules and/or our Code of Conduct.

      2 months later

      abcZ

      Use "Fairemail" (preferred) or "K9Mail" instead of proton mail.

      How did you get protonmail working with fairemail? I just tried and got an error message saying protonmail isn't supported. Everything I've seen posted online has said protonmail doesn't work with third party email clients. Would love to get it working if its possible.

      • abcZ replied to this.

          Boffs I said instead of. Pick a better email service provider, best choice is to host your own.

              abcZ best choice is to host your own

              I'd say that would be the worst choice

              • abcZ replied to this.

                  f13a-6c3a You would definitely have to substantiate that, because its completely off.

                      abcZ
                      You listed two email clients as a replacement for an email service provider. Not helpful.

                      • abcZ replied to this.

                          abcZ You would definitely have to substantiate that

                          uptime, tech knowledge, security management, hardware management, mail server management, records (DNS, MX, SPF, spam, etc.) management, service cost, just to name a few - but you already knew that :)

                          abcZ because its completely off

                          you would definitely have to substantiate that - ohh, wait....

                          • abcZ replied to this.

                                Boffs Its not my fault or problem if some people pick an email client that ties them to a specific provider.

                                  Hosting your own email provider is quite a headache and is out of reach for non-tech persons. And even if you succeed, you won't have all you mail delivered since some providers will refuse mail coming from unknown providers or from a residential IP. But if you like tinkering with computers it is a funny challenge !
                                  And by the way, an email is never private, except if both parts have an encryption system (which is quite rare) : an email is like a postcard, every person that catches it can read it.

                                  abcZ You've failed to support your position entirely.

                                  I could ask:

                                  abcZ You would definitely have to substantiate that

                                  but see no point