- Click the File tab, and then click the Info tab in the menu.
- Click Automatic Replies (Out of Office).
- From that box, select the Send Automatic Replies check box.
- There you can select the time when you are out of office and there are also options to sending only for Inside my organization , type the message that you want to send within your organization, and the Outside my organization for outside incoming emails.
That's all! :)