Even the essential functions like sending emails may seem challenging when you have multiple Outlook accounts connected. However, Outlook has made this very easy. Here’s how to choose the account from which you want to send an email: 1. Go to Outlook and log in if prompted. 2. Press “New email.” 3. You’ll see the “From” option. By default, Outlook fills in this field with the account you’re currently in. If you want to change this, simply press the arrow next to “From” and select the desired email address.