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Summary
This article guides you through adding a "Shared Account" into your Outlook applications, including Outlook Classic.
Outlook Web App & New Outlook
1.) Open Outlook, and log in if needed. In the top right, click on your account name to open the account manager menu. Then, click "Open another mailbox".

2.) In the pop-up window, enter the name of the mailbox you intend to add, then press "Open".

3.) You should now be able to access your shared mailbox. To manage your shared mailboxes, click the settings tab in the top right. Then, click on "Account" and "Shared with me" in the left-side columns.
Classic Outlook
1.) Open Outlook (classic), and log in if needed. On the left-side column, right-click your email address and click "Account Properties".

2.) Click the square "Account Settings" drop-down menu, and click the top "Account Settings" button.

3.) Select your mailbox, and then the "Change" button.

4.) Un-check the "Used Cache Exchange Mode..." selection and then press "More Settings" in the bottom left.

5.) Select the "Advanced" tab, and then click the "Add" button next to the mailboxes box.

6.) Add your desired shared mailbox into the field, and press "OK". Your new mailbox should have been added. Press "OK" again on the previous tab, then click "Next" on the "Exchange Account Settings" tab.
7.) Your new shared mailbox should be active, and appear on the left-side column of your Outlook client. If nothing appears, make sure you added the correct shared account, wait 15 minutes, then restart Outlook Classic.
Sending from a Shared Account (Outlook Classic)
1.) To "Send As" in Outlook Classic, create a new email and click on the "From" box to select the shared mailbox, then select your shared mailbox.

2.) If you don't see a "From" box in your email creation field, select the "Options" tab on top, the ellipsis on the right, and select the "From" display option.
