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?
My experience has been fine. If you go into Proton Mail with the understanding that you’re doing it to stop Google from data mining your email, and not for the sake of truly private/anonymous email, you’ll have a good time. The aliasing feature is super nice as well.