Allow .msg file export through JS add-in API in Outlook-Desktop

I'd like to create an add-in which create a .msg file of an email and sends it to a remote server for archival purposes. Outlook already can create .msg files through the "Save as..." dialog but thi...

Office Add-ins development

Rich-E

Copper Contributor

Sep 12, 2023

Alrighty Jim_Neill Philbewan here you go:
https://gist.github.com/DevDuck/db4e7e5903d5d3d2d49a238871da4311

Call it this way:

try {
  await getEmailContentAsync({}, async (asyncResult: Office.AsyncResult<string>) => {
    if (asyncResult.status != Office.AsyncResultStatus.Succeeded) {
      // handle error
      return;
    }

    let content = asyncResult.value;

    // upload file
    // Buffer.from(content, "utf8");
  };
}
catch (err) {
  // handle exception
}

It's a bit messy but should work. Please let me know if you have any issues with it. I know of one sporadic issue with the Mail app opening the files but Outlook seems to open them fine.