For some reason I have it in the back of my mind that they were at one point accused of being a honeypot for US intelligence because of their association with MIT. Probably complete BS, but maybe not. Are they as open source as they claim to be? Looks like they’re on github. F-Droid seems to think they have some Google libraries or whatever that they use.
ProtonMail users, how do you like/dislike it?
What qualifies as being truly private/anonymous email in your book? Or does such a thing even exist?
Based on the reading I’ve done, it doesn’t really seem like one exists - it’s just not what email was designed to do. I’m not an infosec professional, but that’s the impression I’ve been given by others in the field.