Send HTML email in Office365

I wouldn't recommend this. It will be classified as spam pretty fast.

To answer your question you would need to follow this guide:
https://www.linkedin.com/pulse/how-insert-html-source-code-outlook-emails-maurizio-la-cava/

What you can do is provide the link or if you take a screenshot of the video, insert it into the email and link the image to the video it will open the URL when they click the "play" on the image. This will help avoid being marked as spam.

thx Sean get spam out of your mind Im the administrator I will white list this communication ... please focus on HOW to do it not its percieved barriers thx

step 1 in the link does not exist in office 365
"Select more commands to customize your quick access toolbar"

that link must be really old...

please advise

Hello JAaron,

https://support.office.com/en-us/article/Change-the-message-format-to-HTML-Rich-Text-Format-or-plain-text-338a389d-11da-47fe-b693-cf41f792fefa
This Microsoft article will resolve your issue easily.

There is a thread discussing the similar issue, the solutions are given in this seems to be easy, so you can give a try:
https://answers.microsoft.com/en-us/msoffice/forum/msoffice_o365admin-mso_manage/how-to-send-an-html-email-on-office-365/c3450dbb-fda1-4065-98f8-0d61b4864744