Drag and Drop between Outlook and Add-in Pane

Question

Is it possible to drag an attachment or e-mail to an Outlook Web-Addin. The add-in is available to either Outlook 365 (Web) or the main client

My assumption is no -

Answer 1

After they have updated the addin pane to use the edge based browser engine, you can have support for drag and drop. It has the following outlook requirements

• Office 365, version 16.0.11629 will be the next Office 365 monthly update.
• Windows 10, version 1903 will be released in May, 2019.

Answer 2

System tray interception is not a viable solution, not only because of security concerns, but because of deployment reasons. Add-ins functionality and entry points should be entirely described by their manifest files and should not require the user to install any background process.

As to drag-and-drop support in general, currently drag-and-drop to the sandbox is not a part of the product. However, we track Outlook add-in feature requests on our user-voice page. Please add your request there. Feature requests on user-voice are considered when we go through our planning process.