Taking some time off? Setting an Out of Office reply message to your account will let those who email you during that period know you will be unavailable. Here's how to enable an Out of Office reply in the current versions of Outlook:

Windows: In the upper left-hand corner of your Outlook window click "File." Then select "Info." Click "Automatic Replies (Out of Office)." In the dialog box that appears, select the "Send Automatic Replies" checkbox. Then, write your message in the box under "Reply once to each sender with:". You can also select the dates and time periods you wish the message to be sent. When you are finished click "OK.

Mac: In the bottom left-hand corner of your Outlook window, click "Mail." In the top left-hand corner select the "Tools" tab. Next, select "Out of Office." Check "Send automatic replies for account." Then, write your message in the box under "Reply once to each sender with:" You can also select the dates and time periods you wish the message to be sent. When you are finished click "OK."