Jiminy is an Outlook add-in that warns you when you might be sending an email to the wrong person using AI and heuristics. No sensitive data leaves the workstation, and no server component is necessary.
After just a few minutes of reviewing your email, Jiminy is able to tell, based on writing style, keywords, and content, if you have added someone to the recipients (To, CC or BCC) of an email who would not normally receive that type of message.