You can send or reply to mail using the e-mail address of an account you're connected to in Outlook Web App. For instance, you can send mail from your Hotmail address if you're connected to your Hotmail account in Outlook Web App. The message is sent by Outlook Web App on behalf of your connected account.
|This feature may not be available for your account.|
In Outlook Web App, click Inbox > New > Message.
In the new message dialog box, click From, and then select the e-mail address you want to use from the drop-down list.
When you're done composing the message, click Send.
What else do I need to know?
If you don't see the connected account listed in the From drop-down list, check that you've verified ownership of that account so you can send using that account's address. To check, click Options > Account > Connected Accounts, and then click the link for the connected account, which is displayed in the Action column. This will resend a verification e-mail to your connected account. Then sign in to that account and click the link in the verification e-mail. After you do this, you'll be able to send mail using that address in Outlook Web App.
What if I want to know more?