Views:

Outlook Desktop: 

  1. Open Outlook and click on New Email to compose a new message. 

  1. Go to the Options tab. 

  1. In the Show Fields group, click on From to enable the "From" field. 

 

Outlook Web App: 

  1. Open Outlook Web App and click on the gear icon (Settings) at the upper-right corner. 

  1. Select Compose and Reply. 

  1. Under Message format, check the optionAlways show From.