I'm working on an Outlook add-in using OfficeJS.
There does not seem to be a setAsync method on Office.context.mailbox.item.body when reading a message. I can understand why this generally makes sense.
Is there any way an add-in can alter the body text when reading a message?
I do not want to alter the original message on the server.
Currently the feature: Manipulate Message in Read Mode, you requested, is not a part of the product. 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.