What is it about Macintosh when it comes to Emoticons?
I can send them to Window users and they work. But not so with Mac users?
Any I receive from Window users sometimes open, but most times do not.
Generally speaking, some Email clients will interpret ascii emoticons and substitute them with a graphic. e.g. A Happy Face made up of a colon and right brace will become an icon. Like this web site does.
Whether they do that is up to the receiving client.