1.  Click on settings button on the top-right corner and select Set Automatic Replies.


2. This will take you to the Organise email/automatic replies tab. 

The top area of the window allows you to create an automatic reply to internal users and the bottom area is for external users.


3. In the top area, click on Send automatic replies.


4. And select the box next to Send replies only during this time period.


5 Choose your start and end date/time.

Tip! If you do not specify a start and end time, auto-replies will be sent until you click Don't send automatic replies.


6. In the box under Send a reply once to each sender inside my organization with the following message, type the auto-response that you want sent while you are out of the office.