(This post was my response to a question on Quora: “Dear Investor, …” How should the rest of the email go? Required elements? Bonus points for…? Tone? How different is it from the communications to the press and to customers?)
Hopefully, you will not break the news via e-mail. If that’s the case, the relationship is most likely broken and therefore the e-mail would have in it all that you need to communicate, to keep your side of the story simple and straight.