Lousy support
I wanted a solution to improve on iOS or macOS Mail. It just wont work with an exchange server on a local network.
Even if Mail is working, even if the settings are set exactly the same. They brush you off telling you to talk to your net admin. When you tell them that you are the admin. They just stop answering.
This is a hidden flaw that the developer is obviously aware of. But he prefers to take your money rather then address the issue.
I for one am complaining to Apple and demanding a refund.
MachinChose about
Airmail - Your Mail With You, v1.1