Are you known around the office for firing off emails in the wee hours of the morning? Are you in a leadership position? If you answered yes to both of these questions, you may be doing a disservice to both yourself and your team.

Maura Thomas of Regain Your Time says so. According to Thomas, whether it’s intentional or not, bosses who send late-night emails are “chaining their employees to the office 24/7,” which stifles creativity and productivity. Read her full argument on the issue over at the Harvard Business Review.

What about you? What are your email rules? Back up your argument in the comments.