Today is the first day of Microsoft's Build 2019 developer conference, and the company is dropping a ton of news. Among the news are Adaptive Cards and Actionable Messages for Outlook Mobile, features that were added to Outlook for Windows and the Outlook Web App last May at Build.
Adaptive Cards can work with apps, bots, and services and create interactive content in Outlook. For example, a card could be created with your flight on it, and you can interact with the card by checking in. Naturally, this is where the idea of Actionable Messages comes in, since it needs to be an Actionable Message to use an Adaptive Card.
The good news though is that you can now do all of these things without ever leaving the Outlook Mobile app. Microsoft understands that the computer that you're using first is the one in your pocket, and it doesn't make sense to make you go to your PC to complete these actions.
The new features are rolling out now on Outlook for iOS, and will come to Android later on this spring.