We've never wanted to be an end-to-end encrypted service provider - there's purely routing blobs of opaque data around. It's not an interesting problem, and it's at direct odds with "email is your electronic memory".
End-to-end encryption is great for "this message will self destruct in 5 seconds" type instant messaging, but I have a friend who recently forgot her password on an "end-to-end encrypted" email service and lost all her emails. Not a great choice, though luckily she hadn't been using it long, so she didn't lose many memories.
An extreme black-and-white view on confidentiality vs the other parts of security is poor threat modeling, and we especially don't like the idea of selling snakeoil where we claim a level of confidentiality from ourselves which is not supportable by facts.
https://fastmail.blog/2018/02/14/email-is-your-electronic-me...
End-to-end encryption is great for "this message will self destruct in 5 seconds" type instant messaging, but I have a friend who recently forgot her password on an "end-to-end encrypted" email service and lost all her emails. Not a great choice, though luckily she hadn't been using it long, so she didn't lose many memories.
An extreme black-and-white view on confidentiality vs the other parts of security is poor threat modeling, and we especially don't like the idea of selling snakeoil where we claim a level of confidentiality from ourselves which is not supportable by facts.