excuse me ignorance, but I understand that once you receive mail from someone with shared pgp keys, they’d have no way to read the contents.
But when I receive an email from any service that sends me mail, or from a friend that doesn’t use PGP, it sits encrypted in my account… but how do we know proton isn’t ‘reading’ the contents when it is delivered and before it is encrypted in the account?
Is there a possibility of data mining or them storing the contents on their end? like a mirror image?
It’s difficult enough for getting people to switch from whatsapp to signal.
I don’t know how successful i’d be to get people to switch to simplex.
Is there a particular reason that you don’t recommend signal?