From what I read though, the GPG security model for mailbox.org is the same as it is for Proton webmail (except for the browser plugin, where the difference is not really there). I like mailbox.org, to be clear, but I don’t get how it is an alternative to the bridge.
I don’t use mailbox gpg sevice simple as that. I use mailbox perfect imap (k-9) / pop3 (desktop) integration and use gpg natively in case if that person uses gpg. Thunderbird (desktop), k-9 with openkeychain on android. I don’t say proton is bad. It’s quite good if you never want to export mails outside our webmail. I do want it so protonmail is not for me. Most my protonmail issues were with their bridge they, until the moment I migrated to mailbox, have not resolved.
Oh that makes sense. Yeah, definitely simple encryption and exported (unencrypted) emails are not going to work together.
I am all in support for European tech companies, so I think that mailbox.org, tuta, proton etc. Are all good options.
