E-mail asks "Always view images from sender" Will it ask that for videos?

Let’s say I embed a youtube video in the e-mail, will it automatically always show up, or will I have issues with the client seeing it? I know the first time I send e-mails out it asks the client "always view images from sender?", and I’m worried it won’t display the video.. Is video more of a separate part that is always shown no matter what or is it tied in with images, and won’t show until the client accepts to see the images?

Kind of a bad question, but Google isn’t offering much information.

And I’m testing out a new video e-mail for clients, trying to make e-mails more personal..