1. On the Tools menu, click Out of Office Assistant.

    Outlook 2010 and 2007 Out Of Office feature Snapshot
  2. In the Out of Office Assistant dialog box, select the Send Out of Office auto-replies check box.
  3. If you want to specify a set time and date range, select the Only send during this time range check box. Then set the Start time, and then set the End time.
  4. In the Inside my organization tab, type the message that you want to send within your organization, and in the Outside my organization tab, type the message that you want to send outside your organization.
  5. Click OK.
  6. If you selected the “Only send during this time range” option in step 4, the Out of Office Assistant feature will continue to run until the date and time set for the End Time in step 5 is reached.
    Otherwise, the Out of Office Assistant will continue to run until you repeat step 1 and select the “Do not send Out of Office auto-replies” option.