Log in to Outlook Web Access with your campus username and password.
Click on Settings (the gear button on the top right corner of your window).
Select Automatic replies under the settings sidebar
Select Send automatic replies. and set a start and end time.
Check Send replies only during this time period and set a start and end time.
Next, enter a custom message in the text field.
If you want external users to receive the message, check Send automatic reply messages to senders outside my organization.
Select either Send replies only to senders in my Contacts list or Send replies to all external senders
Enter a customized message in the text field.
Click OK at the top of the window next to the check mark.
Modify the dates or message as needed.
To cancel the Out-of-Office replies, select Don’t send automatic replies.