The html of your message center or landing page is displayed in a webview. A webview handles videos slightly differently than a typical browser. This may result in seeing a video preview displayed in your browser but not in your rich message or landing page.
You can use the poster attribute in the video tag to display a video preview:
<video controls poster="/images/w3html5.gif">
<source src="movie.mp4" type="video/mp4">
Your browser does not support the video tag.
This should display the w3html5.gif image until the video is played.
|We always recommend sending a test message to a test device to ensure everything is displaying properly before sending to your audience.|