Few things in life are more embarrassing than the necessity of having to inform an old friend that you have just got engaged to his fiancee.
You may choose to include some music, if you think/know, that the receiver is able to play it.
Put receiver's email address in the first field. You may supply more than one email address, as long as you separate them by comma. Put your own email address in the second field, eventually type a message to the person, and click "Send".