How to Send Mail as a Second Account in Outlook

It is possible to send mail in Outlook as a second account, without switching mailboxes. Please refer to the steps below for guidance through the process:
 

1. From your main mailbox window, click “New Email” to open a new message:

2. Click on the Options tab and then click on the “From” option so that your own email address is shown in the header of the email.

3. To the left of where your email address appears, click on “From” and select “Other Email Address…”

4. Enter the other mailbox address and click on “Ok”