This guide will show you how to add another mailbox to your Outlook desktop app on your Windows computer.
Note: You may need to remove existing shared mailbox from Outlook:
Select File > Account Settings > Account Settings.
On the Email tab, select the mailbox account you need to remove, then click Remove. Restart Outlook.
- Proceed to the steps below to add a shared mailbox.
- In Outlook, click File; click Add Account.
In the Account Setup screen, enter the email account of the shared/proxy mailbox in the Email address field and click Connect.
When prompted, click Microsoft 365.
You will see this screen, click Sign in with another account.
Enter your SU email and click Next.
Enter your SU password and click Sign in.
Verify that the setup completed with “Account successfully added”; click Done.
For personal device: Click No, sign in to this app only.
Click Done
Close and reopen Outlook; your shared/proxy mailbox should be on the left pane below your current.
Tips:
• To send an email from that account, you can click on the Inbox folder of the newly added account and then select New Email from the Outlook top pane.
• You can also select your desired 'send from' email by clicking on the From field from any account.