OWA (or Office 365 Web Apps) can be accessed from anywhere in the world. From here you can access your emails and also add automatic replies. The below process will show you how to add automatic replies when not in the office.
To access this service, open your web browser and browse to https://login.microsoftonline.com
You can also access it by clicking on the Outlook button on our Extranet page:
Once at the login screen, enter your email address and, if necessary, select that it is a Work or School account. Then enter your password that you use to login to your work computer.
You will receive a message asking you if you want to stay signed in. If you plan on working for a long time with this open, then select 'Yes'.
Once you have logged in, you'll be able to see your mailbox as if you were using Outlook. From here, click on the cog-wheel at the top-right next to your name and select 'Automatic replies'.
In the next screen, you can enter your automatic reply along with any custom setting you wish to apply such as declining all calendar invites, amongst others.