Adding a shared mailbox to the new Outlook gives your team access to a common email address without extra licenses. This guide walks you through exactly how to add a shared mailbox in new Outlook step by step, covering both the classic and new versions of the app. By the end, you’ll have your shared inbox up and running in minutes.
Shared mailboxes are perfect for teams handling customer support, sales inquiries, or internal requests. They let multiple people send and receive emails from one address, like info@yourcompany.com. The best part? You don’t need an additional Microsoft 365 license for each user who accesses it.
Let’s get started with the setup process. We’ll cover everything from prerequisites to troubleshooting common issues.
What You Need Before You Start
Before you attempt to add a shared mailbox, make sure you have the right permissions. You need either Exchange admin rights or delegated access from your IT team.
Your organization must use Microsoft 365 or Exchange Online. Shared mailboxes don’t work with personal Outlook accounts or free email services.
You also need the new Outlook app installed. If you’re still using the classic version, the steps are slightly different, which we’ll cover later.
How To Add A Shared Mailbox In New Outlook
This is the main method for adding a shared mailbox in the new Outlook for Windows or Mac. The process is simple and takes less than five minutes.
Step 1: Open The New Outlook App
Launch the new Outlook application on your computer. Make sure you’re signed in with your work or school account that has access to the shared mailbox.
If you don’t see the shared mailbox in your folder pane, don’t worry. We’ll add it manually.
Step 2: Access Account Settings
Click on the File menu in the top-left corner. Then select Account Settings from the dropdown menu.
In the Account Settings window, you’ll see your primary email account listed. Click on it to highlight it.
Step 3: Change The Account Settings
Click the Change button above the account list. A new window will open with your account details.
Look for the More Settings button at the bottom. Click it to open advanced options.
Step 4: Add The Shared Mailbox
In the Advanced settings window, go to the Advanced tab. You’ll see a section labeled “Open these additional mailboxes.”
Click the Add button and type the email address of the shared mailbox. For example, support@yourcompany.com.
Click OK to confirm. Then click Apply and OK to close all windows.
Step 5: Restart Outlook
Close and reopen Outlook. The shared mailbox should now appear in your folder pane on the left side.
If it doesn’t show up immediately, wait a few minutes and refresh the view. Sometimes it takes a moment for the server to sync.
Alternative Method: Using Auto Mapping
In many cases, the shared mailbox appears automatically when you have the right permissions. This is called auto mapping.
If auto mapping is enabled by your admin, you don’t need to do anything. The mailbox shows up in your folder list after you restart Outlook.
If it doesn’t appear, try the manual method above. Auto mapping can sometimes fail due to caching issues or permission delays.
Adding A Shared Mailbox In Classic Outlook
The classic version of Outlook uses a slightly different process. Here’s how to do it if you’re still on the older interface.
Step 1: Open File Menu
Click File in the top-left corner. Then select Account Settings and choose Account Settings again from the submenu.
Step 2: Select Your Email Account
In the Account Settings window, click on your email account. Then click the Change button.
Step 3: Click More Settings
In the Change Account window, click More Settings. Then go to the Advanced tab.
Step 4: Add The Mailbox
Under “Open these additional mailboxes,” click Add. Type the shared mailbox email address and click OK.
Click Apply and then OK to save. Restart Outlook to see the new mailbox.
Adding A Shared Mailbox In Outlook On The Web
You can also access shared mailboxes through Outlook on the web (OWA). This is useful if you’re away from your main computer.
Step 1: Log Into Outlook Web
Go to outlook.office.com and sign in with your work account. The shared mailbox should appear automatically if you have permissions.
Step 2: Right-Click On Folders
In the folder pane on the left, right-click on your name or the “Folders” heading. Select Add shared folder from the menu.
Step 3: Enter The Mailbox Address
Type the shared mailbox email address in the dialog box. Click Add.
The mailbox appears in your folder list. You can expand it to see all folders like Inbox, Sent Items, and Drafts.
Troubleshooting Common Issues
Sometimes things don’t go smoothly. Here are fixes for the most common problems when adding a shared mailbox.
Shared Mailbox Not Appearing
If the mailbox doesn’t show up after following the steps, check your permissions. Contact your admin to confirm you have full access rights.
Try clearing the Outlook cache. Go to File > Options > Mail and click Empty Auto-Complete List. Then restart Outlook.
Error Message When Adding
If you see an error like “Cannot display the folder,” it usually means a permissions issue. Ask your admin to reapply your access.
Another cause is a corrupted Outlook profile. Create a new profile in Control Panel > Mail > Show Profiles and set it up again.
Can’t Send Emails From The Shared Mailbox
To send emails as the shared mailbox, you need “Send As” or “Send on Behalf” permissions. Your admin must grant these separately.
Once granted, you can select the shared mailbox in the From field when composing a new email.
Best Practices For Using Shared Mailboxes
Once you’ve added the mailbox, follow these tips to keep things organized and efficient.
- Set up rules to automatically sort incoming emails into folders.
- Use categories or flags to track which emails need attention.
- Assign ownership for specific conversations to avoid duplicate replies.
- Enable automatic replies for out-of-office messages.
- Monitor mailbox size and archive old emails to stay under storage limits.
Shared mailboxes have a 50 GB storage limit by default. If you need more, your admin can increase it or add an archive mailbox.
How To Remove A Shared Mailbox
If you no longer need the shared mailbox, removing it is just as easy. Follow these steps.
In New Outlook
Go to File > Account Settings > Account Settings. Select your email account and click Change.
Click More Settings and go to the Advanced tab. Under “Open these additional mailboxes,” select the shared mailbox and click Remove.
Click OK and restart Outlook. The mailbox disappears from your folder pane.
In Outlook On The Web
Right-click the shared mailbox in your folder list and select Remove shared folder. Confirm the removal.
This only removes it from your view. Other users with access can still see it.
Frequently Asked Questions
Why Can’t I See The Shared Mailbox After Adding It?
This usually happens due to permission delays or caching issues. Wait 15 minutes and restart Outlook. If it still doesn’t appear, ask your admin to verify your access.
Can I Add A Shared Mailbox On My Phone?
Yes, you can add a shared mailbox to the Outlook mobile app. Open the app, tap your profile icon, and select Add Account. Enter the shared mailbox email address and follow the prompts.
Do I Need A License For Each Shared Mailbox User?
No, shared mailboxes don’t require additional licenses for users who only access them. However, the mailbox itself needs a license if it exceeds 50 GB or you enable archiving.
How Do I Send An Email From A Shared Mailbox?
After adding the mailbox, compose a new email. Click the From button and select the shared mailbox address. If it’s not listed, you need “Send As” permissions from your admin.
What’s The Difference Between A Shared Mailbox And A Distribution Group?
A shared mailbox has its own inbox and sent items folder. A distribution group just forwards emails to multiple people without storing them. Shared mailboxes are better for collaboration.
Final Thoughts On Adding Shared Mailboxes
Now you know exactly how to add a shared mailbox in new Outlook using multiple methods. The process is straightforward once you have the right permissions.
Remember to check auto mapping first, as it saves time. If that fails, the manual method works every time. For web users, the right-click method is fastest.
Shared mailboxes are a powerfull tool for team communication. They keep everyone on the same page without extra costs. With this guide, you can set one up in minutes and start collaborating effectivly.
If you run into issues, refer to the troubleshooting section or contact your IT admin. Most problems are permission-related and easy to fix.
Go ahead and try adding a shared mailbox today. Your team will thank you for the streamlined workflow and shared inbox access.