content: ProtonMail: Disappointed in it Some time ago I promoted Proton as a good alternative email but today I am giving it up. It is completely unreliable. My posts fail to be delivered at the destination even though when you go to the web browser it is marked as "delivered". The Android app has a lot more failures than the web browser to deliver. I have an impression that it is caused because it loses network connection when it is sending. In a lot of cases attachments are lost in the email. The email gets received but has NO attachment. Another thing that happened is that receiving mail ended up in SPAM folders. So I never noticed them. How can a reply on an email I have sent end being marked as SPAM? And I guarantee that I never ever marked this email address as SPAM.  When I tested, in the beginning it worked great but I have the impression that the quality goes down dramatically. I wonder if they basically quality test if they do updates. So I stop using it, even the free version because I can  not trust it that it sends/receives.