I have a feature for agents that I work with and past clients called VidTips.  It's basically a video newsletter with helpful information about owning a home.  I thought about emailing the actual video, however, that leaves you with only two options.  Either you attach the video to the email, which would be a huge attachment, not to mention most people don't open attachments in fear of viruses, or you embed the player in the email and host the video on your server.  The problem with the second option is that all email programs aren't alike and one might open the video and one might not.  Here's the method I use.  I send my email with a jpg image of the player.  Make the picture a hyperlink to your website where the actual video is hosted.  When people click play, their internet browser opens and the video is set to auto-play on my website.  This also drives more traffic to my site and they might want to browse around once they're there.  Go ahead, try it out:

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Certified Tacoma Home Inspector