I don't think he should be writing any emails at all. He should communicate with his investors through PRs, SEC filings, or informational statements on a website.
Much easier for him, and it also ensures that any information he feels his shareholders should have is available to all of them.
Register for free to join our community of investors and share your ideas. You will also get access to streaming quotes, interactive charts, trades, portfolio, live options flow and more tools.