It took him eleven seconds to type the sentence, and he forgot it before lunch.
A manager, mildly irritated on an ordinary Tuesday, fired off a line about a colleague. Nothing dramatic. A little sharp, a little dismissive, the kind of thing people say when they assume they are speaking only to the one person in the “To” field. He hit send, moved on, and never thought about it again.
Three years later that sentence was on a screen in a conference room he had never entered, being read by lawyers he had never met, in a dispute he had not seen coming. Pulled out of its Tuesday, stripped of its tone, laid flat on a page beside a date and a timestamp, it no longer read as a passing mood. It read as evidence. It meant something now that he had never meant by it, and there was nothing he could do, because he had written it in ink he mistook for pencil.
Here is what almost every leader forgets about email, and it is the reason this subject deserves more than a list of tidiness tips. Every message you send is three things at once. It is a message, which is the only part you are thinking about. It is a record, which will sit in a system long after the conversation is dead. And it is potential evidence, which can be summoned, forwarded, and read by an audience you never imagined, at a time you cannot predict, in a mood you cannot control. You attend the first. The other two are the ones that will eventually define you.
