You can insert a video into an email broadcast by following the steps below:
- upload your video to a service like YouTube, Vimeo
- take a screenshot of the video and save it to your computer
- upload that image via the image icon in the toolbar of the email’s text editor
- link the image to the video's URL via the link icon in the same toolbar
This creates an image of your video that links to a new tab where the video will begin playing.
Most email clients don't support embedding videos directly into the email, so this is the standard way to include a video in your emails.