In normal encrypted email usage (without appliances at both ends) the emails are encrypted at any point after creation. They are only decrypted when someone wan

In normal encrypted email usage (without appliances at both ends) the emails are encrypted at any point after creation. They are only decrypted when someone wants to look at a particular message. So encrypted archiving comes for free. This is actually a significant and helpful feature here. I don't see the point of giving this feature up and then working to create a secure archiving system to make up for it.