This article explains how to change the reply-to header in your Outlook.com email account so that you can receive replies at a different email address. Instructions apply only to Outlook.com, Microsoft's free web-based email service.
How to Change the Reply-to Address in Outlook
To set an address as the default From address in Outlook.com:
In Outlook.com, select Settings (the gear icon).
Select View all Outlook settings.
