Sending On Behalf of another user

From Outlook:

1. Open a new email and go to Options. Click From to show the From field.

   

2. Click From > Other E-mail address. Type in the address of the user or select it from the Global Address book and click OK.

   

3. Send the message.
4. Message recipients will see in the From field: Your Name <delegate's address> on behalf of Other User Name <owner's address>.

   

From OWA:

1. Compose a New email.
2. In the reading pane, click the More Options menu 

   

   , and then click Show From.
3. Right-click the email address and choose Remove.
4. Type the email address of the owner's mailbox.
5. Send the message.