If I had none issues with this app would go on for so long without being addressed I would never have paid for it. The background refresh programming is screwed up; it causes the Touch ID prompt to come up every time you put the app in the background. It also causes the app to fail to download emails sometimes. You have to close and reopen the app for them to appear. Still no support for in-line images (I work for a technology company and we depend on screenshots).
ucfhall about Mail+ for Outlook