How to add a Mailbox in OWA

Requirements

This document will walk you through adding a mailbox (shared or licensed) to your Microsoft 365 account. Before you work through this document, make sure you have the following. 

• Microsoft 365 Credentials (Username and Password).
• Permission to access the mailbox you are adding.
• Permission to send as (optional last section).

There is a video version of this walk-through here:
https://youtu.be/h-ODkSy8-vE

If you run into problems, please reach out to ViaTek by sending an email to support@viatek.net or call 303-664-1182.

Sign into Outlook

1. Visit https://outlook.live.com/owa/

• Login using your Microsoft 365 credentials

Add Mailbox

2. Right click “Folders” on the left-hand side. 

• Select “Add shared folder or mailbox”.

3. Type in the email address you would like to add.

• Select the email and click “Add”.

4. Now you will see the mailbox listed on the left side of your page.

• It can take some time for mail within the mailbox to be viewable.
  • Give Outlook a moment to sync before viewing. 

Add a “From” button to send as (Optional)

5. From the top left select “View”.

• Then “View settings”.

6. Select “Compose and reply”.

• Then scroll down a little and choose “Always show From”.
• After that, click the “Save” button.

7. In the top left, select “Home”.

• Now select “New mail” from the top left corner.

8. Inside the new email, click on “From” and then “Other email address”.

• Type in the mailbox you are adding and choose the email when it appears.

If you run into problems along the way, please reach out to ViaTek by sending an email to support@viatek.net or by calling 303-664-1182.