How to Add a Shared Mailbox in Outlook: Your Complete Guide
Introduction: Streamline Team Collaboration with Shared Mailboxes in Outlook
In today’s collaborative work environment, shared mailboxes are indispensable tools. They allow multiple users to send and receive emails from a common address, manage calendars, and handle tasks as a team – perfect for departmental inquiries, support queues, or generic information accounts like info@yourcompany.com or support@yourcompany.com.
But how do you actually get started and add a shared mailbox to your Outlook client? While it might seem daunting at first, the process is straightforward once you know the steps. This comprehensive guide will walk you through adding a shared mailbox in the Outlook desktop application and Outlook on the web, along with crucial troubleshooting tips and best practices for seamless teamwork.

Ready to boost your team’s efficiency? Let’s dive in!
Before You Begin: Essential Prerequisites
Before you attempt to add a shared mailbox, ensure you meet these critical requirements:
- Permissions are Key: You must have been granted “Full Access” or “Send As” permissions (or both) to the shared mailbox by your organization’s IT administrator. Without these permissions, the shared mailbox will not appear or function correctly.
- Existing Outlook Profile: You need an existing Outlook profile configured with your primary email account. Shared mailboxes are typically added after your main account is set up.
- Internet Connection: A stable internet connection is required to connect to the Exchange server and retrieve mailbox information.
If you’re unsure about your permissions, contact your IT department or administrator.
Method 1: Adding a Shared Mailbox in the Outlook Desktop Application (Windows)
This is the most common method for users who frequently work within the Outlook desktop client. In most cases, if you have the correct permissions, the shared mailbox will automatically appear in your Outlook. However, if it doesn’t, here’s how to add it manually:
Option A: Automatic Addition (Most Common)
- Restart Outlook: Often, simply closing and reopening Outlook after permissions have been granted will make the shared mailbox appear automatically under your primary mailbox in the left-hand navigation pane. Look for it listed below your personal folders.
- [Placeholder for Screenshot 1: Image showing a shared mailbox automatically appearing in the left navigation pane under the primary mailbox.]
Option B: Manual Addition (If it doesn’t appear automatically)
If the shared mailbox doesn’t appear on its own, you can manually add it as an additional mailbox.
- Open Outlook: Launch your Outlook desktop application.
- Go to File: Click on the “File” tab in the top-left corner of Outlook.
- [Placeholder for Screenshot 2: Image of Outlook’s File tab highlighted.]
- Account Settings: Click on “Account Settings” and then select “Account Settings…” from the drop-down menu.
- [Placeholder for Screenshot 3: Image of Account Settings dropdown menu.]
- Select Your Account: In the Account Settings window, ensure your primary email account (the one you want the shared mailbox linked to) is selected under the “Email” tab.
- Change Account: Click on “Change…”
- [Placeholder for Screenshot 4: Image of Account Settings window with “Change…” button highlighted.]
- More Settings: In the new window, click on “More Settings…”
- [Placeholder for Screenshot 5: Image of the “Change Account” dialog box with “More Settings…” button highlighted.]
- Advanced Tab: Go to the “Advanced” tab.
- Add Shared Mailbox: Under the “Open these additional mailboxes:” section, click the “Add…” button.
- [Placeholder for Screenshot 6: Image of the “Advanced” tab with “Add…” button highlighted.]
- Type Shared Mailbox Name: In the “Add Mailbox” dialog box, type the name of the shared mailbox (e.g.,
info@yourcompany.comor the display name of the shared mailbox). Click “OK.”- [Placeholder for Screenshot 7: Image of “Add Mailbox” dialog box with a sample shared mailbox name entered.]
- Confirm and Finish: Click “OK” on the “Microsoft Exchange” window, then “Next” on the “Change Account” window, and finally “Finish” on the “Account Settings” window. You may need to restart Outlook for the changes to take effect.
- [Placeholder for Screenshot 8: Image of confirmation dialogs leading to “Finish.”]
Once added, the shared mailbox will appear in your left navigation pane, usually below your personal folders.
Method 2: Accessing a Shared Mailbox in Outlook on the Web (OWA)
Outlook on the Web (OWA) is ideal for accessing your email from any browser, anywhere. Adding a shared mailbox here is often even simpler.
- Log In to OWA: Open your web browser and go to your organization’s Outlook Web App URL (e.g.,
outlook.office.com). Log in with your primary email credentials. - Your Profile Picture: In the top-right corner of the OWA interface, click on your profile picture (or initials).
- [Placeholder for Screenshot 9: Image of OWA interface with profile picture/initials highlighted.]
- Open Another Mailbox: From the drop-down menu, select “Open another mailbox…”
- [Placeholder for Screenshot 10: Image of profile picture dropdown with “Open another mailbox…” highlighted.]
- Enter Shared Mailbox Address: A new window will appear. Type the full email address of the shared mailbox (e.g.,
support@yourcompany.com) and click “Open.”- [Placeholder for Screenshot 11: Image of “Open another mailbox” dialog with shared mailbox email entered.]
- New Tab/Window: The shared mailbox will open in a new browser tab or window, allowing you to view and manage its contents.
Pro Tip: If you frequently use a shared mailbox in OWA, you can often “favorite” it in your browser for quick access.
Troubleshooting Common Shared Mailbox Issues
Encountering problems? Don’t worry, many issues are easily resolved.
- “Shared Mailbox Not Showing Up Automatically”:
- Solution: As mentioned, try restarting Outlook. If that doesn’t work, follow the “Manual Addition” steps for the desktop app.
- Most Likely Cause: Permissions were only recently granted, and Outlook hasn’t refreshed yet, or there’s a minor configuration glitch.
- “You don’t have permission to open this mailbox.” / “Cannot expand the folder.”:
- Solution: This is almost always a permissions issue. Contact your IT administrator immediately and verify that “Full Access” permissions have been granted to your user account for the specific shared mailbox.
- Most Likely Cause: Permissions have not been granted, or there’s a delay in permission propagation.
- “Cannot send emails from the shared mailbox (Send As permission)”:
- Solution: Ensure your IT administrator has granted you “Send As” permissions in addition to “Full Access.” In the Outlook desktop app, when composing an email from the shared mailbox, make sure the “From” field shows the shared mailbox’s address. If not, click “From” and select “Other E-mail Address…” to choose the shared mailbox.
- [Placeholder for Screenshot 12: Image of “From” field in Outlook compose window and selecting “Other E-mail Address.”]
- Most Likely Cause: Missing “Send As” permission.
- “Changes made in shared mailbox not syncing”:
- Solution: Check your internet connection. Try restarting Outlook. If using the desktop app, ensure Outlook is in “Online Mode” if that’s your organization’s setup (though “Cached Exchange Mode” is common). Contact IT if the issue persists.
- Most Likely Cause: Network connectivity issues or temporary server problems.
Best Practices for Using Shared Mailboxes Effectively
To maximize your team’s productivity with shared mailboxes:
- Clearly Define Roles: Establish who is responsible for responding to emails, archiving, or managing the calendar within the shared mailbox.
- Use Categories/Flags: Utilize Outlook’s categorization and flagging features to track emails that have been actioned, are pending, or require follow-up.
- Create Shared Mailbox Signatures: Set up a default signature for the shared mailbox to ensure consistent branding in outgoing emails.
- Regularly Clean Up: Archive or delete old emails periodically to keep the mailbox organized and prevent it from becoming unwieldy.
- Communicate Internally: Inform your team about any changes to the shared mailbox settings or best practices.
- Monitor Permissions: Periodically review who has access to the shared mailbox to maintain security and relevance.
Conclusion: Empower Your Team with Seamless Shared Mailbox Access
Adding a shared mailbox to Outlook is a powerful way to enhance team collaboration and streamline communication. Whether you prefer the robust features of the desktop application or the flexibility of Outlook on the web, following these steps will ensure you’re connected and ready to go.
Remember, if you encounter persistent issues, your organization’s IT department is your best resource. They can verify permissions and troubleshoot any server-side configurations.
Ready to get your team collaborating more effectively? Follow this guide and unlock the full potential of shared mailboxes in Outlook today!