Good but needs improvement

I love simple UIs as much as the next person, however I find that the simplicity of this app on the MAC is actually getting in the way.
Let me explain what I mean…

I get a lot of emails on 2 different accounts and I find that with the single page list view, I have to keep clicking in an out of each email to navigate different emails. I know that I can use the arrow keys to go to the next or previous email, but that’s not what I need to do 80% of the times I am navigating. I need to look at a bunch of emails that are scattered in the list because they are relevant to the task I am doing, or I left some of them unread for me to consume later because they are less important and now to navigate between emails it takes double the number of clicks. I would prefer the option of showing the reading pane to the right of the list.

It is difficult to notice the new unread emails because of the subtle difference between the bold text and unbolded text. Why not use the blue dot like on the iOS app? It’s the standard for apple products anyway.

It needs to support reading of signed emails with attachements over exchange.
It needs to allow me to sign my emails over exchange. I can’t use it for my corporate email because it is missing this functionality.
Signed email support for exchange is also needed on iOS by the way.

I love the beautiful look and feel and it’s simplicity but I really need the features I just mentioned for me to use it full time.

jastorino about Newton - Supercharged emailing