Having migrated from Newton because of their ridiculous fee, I was happy to find this alternative. I do notice a few key features which are missing which were reported and confirmed by developers to not be available.
No spam button or a way to identify a message as spam.
Huge lag issue. Ive emailed the developers and very bad lack of support. Sad.
If you take off combined inboxes, when you start the app, it automatically brings you to "all inboxes" anyway. Weird.
Otj287 about Email - Edison Mail, v1.4.1