This article describes how to modify your Outlook.com email account's reply-to header so you can receive responses at a different email address. Only Outlook.com, Microsoft's free web-based email service, is covered by the instructions in this article.
In Outlook.com, enter a default from address.
To change the default From address in Outlook.com, do the following:
Select Settings (the gear icon) in Outlook.com.
selecting View all Outlook settings.
Outlook settings screenshot
Open Mail and select Sync Email.
Add an email account under the Add a Connected Account area as seen in the screenshot below.
Choose the desired address by clicking the Set default From address dropdown arrow.
screenshot of the default address from Save As.
Once you're done, close the Settings window. You now have a new default From address.
Modify the reply-to address on Outlook.com
The email application Outlook.com automatically designates the address in the From box as the reply-to address when you send a message. Change the address in the From line to direct email answers to a different address.
Register on Outlook.com.
Send a message forward, start a new message, or reply to one that has already been sent.
In the composition pane or window's top toolbar, click the More commands icon ().
Screenshot showing the Show From option under More Commands.
a picture of using a drop-down
Select the email address to which you want to send responses to this one. You'll get a notification at this address when the message's receiver responds.