An error occurred while saving the commentMatt Sawyer commented
FWIW: I use Airmail 3 with my Exchange account. I just realized that I can create a Smart Folder with is:starred and it seems to sync with the flags I see outside Airmail. Unfortunately the built-in Starred folder doesn't work with flags set outside Airmail. If only there was a way to either hide it or make it work like this smart folder does...