22 email rules every professional should know

US employees spend, on average, about a quarter of the workweek combing through hundreds of emails.

Despite the fact that we're glued to our reply buttons, career coach Barbara Pachter says plenty of professionals still don't know how to use email appropriately.

Because of the sheer volume of messages we're reading and writing, we may be more prone to making embarrassing errors, and those mistakes can have serious consequences.

Here are some basics of modern email etiquette every professional should know: