Unfortunately, it is not possible to directly embed videos in your marketing emails via Revinate.
You can always add a link to the site where that video is located in your email (it would redirect guests to another URL) but we usually recommend not to overload emails with a lot of information since it can result in rendering issues.
These are the steps to follow:
In the "Design" step within the Campaign builder link/connect the Call to Action button with the External URL field located on the module editor (to the right- see screen shot for reference). This external URL will be the link to the site where the video is located- for example an ezine.
If you prefer to link up the external URL where your video is located to an image instead of a Call to Action button in your email you can always choose an image module.
You can upload a screen shot of an image of the video you want to use in your campaign with a play button on top of it (you can use Photoshop to add the play button to the image).
This would be an example of a photoshopped image of the video that you wish to use in your campaign. It will be connected to the external link that will redirect your guests to the actual video. So while it may look like an embedded video, it is actually just an image that links to the video content.