If you are out of the office for a longer or shorter period, it is necessary to let those sending you email know by setting up an automated out-of-office reply. That way, the sender won't wait for a reply for many days, not knowing that you are unavailable. Click on the applicable category above to find instructions for setting up an out-of-office reply.
The video below, provided by Microsoft, shows you how to set up an out-of-office reply. Additional videos on organising your email can be found here: Organize your email