Take a time out. For most people, a timeout is more realistic than an outright ban. If doing so during the business week is out of the question because of the nature of your work, try taking a day off on a weekend from both work and personal e-mails.
Maybe your time out is evening hours. Think of it as an e-mail fast. No matter when you do it, be sure to activate your "out of office" message so senders know you're not ignoring them.
Tory Johnson is the workplace contributor for "Good Morning America" and the CEO of Women for Hire. Connect with her at www.womenforhire.com.