I don’t think that’s true. They can always do PGP on the client after decrypting the email (so double-encrypt). It’s also not particularly interesting because almost nobody uses PGP. It’s a design decision that I’m not a big fan of, but if they’re legally obligated to maintain my privacy, maybe I’m okay with it. I’ll give it some time and see how that pans out.
OpenPGP is actively supported by dozens of clients, they cannot and do not encrypt subjects, so Proton chose to be compatible with that. I think dismissing cross-compatibility because of a hand wave “nobody uses it” isn’t very productive either.
While it does help with search it was required to be compatible with OpenPGP.
I don’t think that’s true. They can always do PGP on the client after decrypting the email (so double-encrypt). It’s also not particularly interesting because almost nobody uses PGP. It’s a design decision that I’m not a big fan of, but if they’re legally obligated to maintain my privacy, maybe I’m okay with it. I’ll give it some time and see how that pans out.
OpenPGP is actively supported by dozens of clients, they cannot and do not encrypt subjects, so Proton chose to be compatible with that. I think dismissing cross-compatibility because of a hand wave “nobody uses it” isn’t very productive either.