To set an automated reply using an Outlook Web App, you must be first logged into an Outlook Web App - http://owa.cloudplatform1.com (Exchange 2013) or https://cas.messageexchange.com/owa (Exchange 2010)
1. Once you've logged into your Outlook Web App, open the options menu in the top right corner or the page and click 'Set Automatic Replies'.
2. Then select 'Send automatic Replies' and check 'Send Replies Only During This Time Period'.
3. Choose a 'Start Time' and 'End Time'. This will mean that between your chosen time period an automated message will be sent.
4. Enter your message in the text field.
5. If you would like to send different automated messages to external user than internal, un-check 'Send Automatic Reply to Senders Outside my Organisation'.
6. Once you are happy with your automated message, click 'Save'.
