Below you will find the steps on how to Forward emails within Office 365.
1. Navigate to mail.office365.com this will enable you to log directly into your OWA.
2. From the top right corner click on the "Settings" icon and select options.
3. From the Options page, click on "Account" if not already selected from the pane in the left. Next click on "Connected Accounts" from the pane in the right.
4. Finally enter the email you want to start forwarding your emails to and click "Start forwarding".