[DKnoll]

It was amusing that Sunrise was bought by Microsoft, but still could not connect to either of the Exchange servers I threw at it. Support basically just shrugged at me via email, rough translation being 'it works on my machine.'

Sort of unrelated, but Outlook for Android also still cannot handle recurring all-day events. They will appear in the calendar on incorrect days. Also tested this across multiple servers.

I use Nine for email, which blows Outlook for Android out of the water. Business Calendar 3 is the only Outlook (Desktop) equivalent calendar I've found for Android.