Manual - there needs to be one
It would be helpful to have an updated manual. I have never used 1.x and am new to the product. I want to know how you're different than Apple Mail. I find it extremely annoying that when I go to your "manual" page, I get automatically redirected to a plugin page. Why? This is a bug, as far as I'm concerned, and it does not help me learn, appreciate, or want to go further with your software - bad user experience = unhappy customers and bad fallout on social nets.
Stuart Hertzog commented
This need is urgent, especially with the release of 3.x for OS X, which is bringing in new users to Airmail. Right now, I'm finding it impossible to find how to do some tasks, such as set a Contact as a VIP, as the instructions are only for iOS. Your documentation's totally inadequate.