Software & Apps MS Office How to Specify a Reply-To Address in Outlook.com Choose which email account you want to use to send Outlook mail by Heinz Tschabitscher Writer A former freelance contributor who has reviewed hundreds of email programs and services since 1997. our editorial process Heinz Tschabitscher Updated on March 09, 2020 MirageC / Getty Images MS Office Outlook Word Excel Powerpoint Tweet Share Email If you send a message from your Outlook.com email account but want to receive replies at another email address, it's easy to change the reply-to header by selecting a different email address that you've set up in Outlook. Instructions in this article apply only to Outlook.com, the free web-based email service from Microsoft. Change Your Outlook.com Reply-To Address When you send an email in Outlook.com, the program automatically uses the address in the From field as the reply-to address. To have email replies go to a different address, change the address in the From line. Log in to Outlook.com. Start a new message, forward a current message, or reply to an existing message. Select the More commands icon (⋯) in the composition pane or window's top toolbar. Select Show From. Select From. Choose the address where you want replies to this email sent. When the recipient replies to the message, you'll receive it at this address. Specify a Default From Address in Outlook.com To set an address as the default From address in Outlook.com: In Outlook.com, select Settings (the gear icon ⚙). Choose View all Outlook settings. Go to Mail > Sync email. Add an email account in the Add a Connected Account section. Select the Set default From address dropdown arrow and choose the address you wish to use. Select Save. Close the Settings window when you're finished. Your new default From address has been set.