In order to add trackable content to your emails, open up a new Compose window. Instead of using the "Attach File" button, which will attach the file externally to the email, click on "Content".
If you have previously added content, you will see those files, and if not, click "Upload" to upload a new piece of content from your computer.
Note that the file will be placed where your cursor is within the email, and that you must click "Tout It" when sending the email in order to track the content within your live feed.
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