The problem is that almost no one uses PGP, as this vice article points out: https://www.vice.com/en/article/vvbw9a/even-the-inventor-of-pgp-doesnt-use-pgp
If your goal is secure communication with other tech-savvy, privacy conscious people, then I agree that PGP is a reliable, time tested solution.
But if your goal is to keep email providers from data mining your inbox, then Proton is an easy way to do that, no matter who you’re communicating with.
I think we mostly agree, and I appreciate you advocating for secure alternatives and privacy in general!
That’s true. Proton can only encrypt your inbox in that case.
I disagree. Having my inbox encrypted and using an email provider that doesn’t mine my data is certainly worthwhile for me.
I’m not advocating Proton over other, more secure and private communication methods. My point is that, if you’re choosing an email provider, Proton is a good choice. They’re a nonprofit whose mission is privacy, and they spend considerable technical effort to ensure it.
I would hate to see someone switch from Proton to Gmail or some other provider that doesn’t offer any privacy because they mistakenly think all providers are the same.
To the extent that’s practical, I strongly agree. As you correctly point out, email is a plaintext protocol, and there’s nothing Proton can do about that.
But if you do use email and not all your contacts have exchanged PGP keys with you, which I’m sure is true for many people, then I think there’s a lot of value in using a provider that offers an encrypted inbox and doesn’t mine your data.