Can I embed a video into my email?
Technically, yes.
Do we recommend it?
No.
At least, not at this time. While video in email has gained traction over the past few years, it's still not widely supported enough by the many email client/browser/platform combinations to ensure that all of your contacts will see it, or have the ability to play it. From a recent Campaign Monitor article (https://www.campaignmonitor.com/resources/guides/video-in-email/):
"Email clients like Gmail, Outlook, Thunderbird, and others often don’t support the technical requirements needed to play video right inside the email."