Protonmail only has e2e if you email another protonmail email. It’s impossible to have it across domains, if you actually care about security just use pgp.
Correct me if I’m wrong, but I believe Protonmail stores emails encrypted on disk. So yes, Protonmail could store the unencrypted messages as they arrive, but as long as they don’t have a warrant at the time the message is received, they can’t access it later.
Protonmail only has e2e if you email another protonmail email. It’s impossible to have it across domains, if you actually care about security just use pgp.
Correct me if I’m wrong, but I believe Protonmail stores emails encrypted on disk. So yes, Protonmail could store the unencrypted messages as they arrive, but as long as they don’t have a warrant at the time the message is received, they can’t access it later.