Does the new Microsoft Outlook API, which enables development of Outlook addins for cross platform, have the ability to trigger an event off the user clicking the send button?
I currently have an Outlook VSTO addin that uses the Application.ItemSend event to check an email for specific content and present the user with a popup asking them if they still want to send or not. This is only compatible with Outlook 2007-16 on Windows though, and I was hoping the new API might enable me to build something similar for Outlook on Mac/mobile/web, but I haven't found any examples or documentation on this particular event trigger yet.
Link to Outlook API