Is it really so hard to make it secure? If both parties are using some kind of secure email client, couldn't the clients just encrypt and decrypt the subject/content?

[–] sveltecider@lemmy.ca 5 points 7 hours ago (1 children)

The main issue is that in reality, 95%+ of people aren’t using an encrypted service. So it’s proton to Gmail usually

[–] Kacarott@aussie.zone 2 points 7 hours ago (1 children)

Sure but this is very similar to messaging isn't it? Like most of my friends use WhatsApp, but a few people use signal and that number is increasing.

At least with email, a single client could presumably send encrypted emails to others when possible, and regular emails when not. Add opposed to messaging where I cannot send messages from signal to WhatsApp

[–] ReluctantlyZen@ani.social 1 points 4 hours ago

Between proton accounts, mails are fully E2E encrypted. It's just not a lot harder between different mail providers like Gmail and Hotmail. Proton does save the received emails fully encrypted, but that encryption has to be done on the server.

It is possible though, it just depends on tje sender/receiver: https://proton.me/support/proton-mail-encryption-explained