Make encrypted mail to outside addresses more like a persistent chat while browser session is open
when sending email to addresses outside of protonmail, the recipient should be dropped into an interface that is more chat-like after entering the message password, so if there is back and forth messaging with the sender a new password doesn't need to be set each time and a new link doesn't need to be received and followed
This sounds like what I've been looking for. Although I am preferring protonmail, I like the way that tutunota implements the on-going conversation with users outside of the service. They have an agreed upon password on the user level, rather than on a message level, which is saved in the contacts. Then, when the outside user clicks the link to access, it pulls up all of the conversations and makes it easier to continue a conversation in a chat -like setting. I'd like to see something like that implemented in protonmail. I think it would make it easier to continue correspondence with users outside of the system.
I was thinking the below, but your idea sounds much better!
It could leverage SMTP if needed, basically running as a quick email back and forth, but with a neater front end for the user, to make it appear as IM?
Also, if the app would be too much work for a trial, perhaps a web based version for the pilot?