Block or prevent joyful animations when sending messages

Is there any way (via some kind of html header or tag) to block or prevent Outlook's "Joyful Animations"? I know that each user can adjust their settings to turn it off, but our powers that be (ie: c-level executives) want to be able to use the work "congratulations" in a mass email without users seeing it highlighted and the animated confetti. Apparently, it's unprofessional or unbusinesslike or something.