My answer: As I’ve said before, Emojis and animated gifs are not only appropriate in business emails, they often improve the response of work-related emails when used sparingly. I wouldn’t use them more than 25% of the time. But they’re downright endearing because business correspondence is often stuffy and staid. So the occasional visual surprise keeps things interesting and reminds the recipient that they’re dealing with a personable human being. I highly recommend them.