Setting Up an Out of Office Reply
Outlook Web Client
Once you’ve logged into the Office Outlook Web App site, click on the Options button at the top right of the main page. Under the Options column at left, click on Out of Office Assistant. Click on the circle to select Send Out Of Office auto-replies for either internal, external, or both audiences. Enter the message and date ranges required for internal and external messages and then click on the Save button (just to the right of the options column heading). To turn off the Out Of Office Assistant, go to the same location and click on the circle for Do not send Out of Office auto-replies, and then click on Save.
Outlook Application (the version installed directly on your PC)
Click on Tools and select Out of Office Assistant from the drop-down menu. Click on Send Out of Office auto-replies, put in the date/time range if required, and then type in your message as you would like it sent. Click on OK to save. To turn off the Out of Office Assistant, click on Tools and select Out of Office Assistant from the drop-down menu and then click on Do not send Out of Office auto-replies, then click on OK to save.