Can You Rename a Shared Mailbox?

Logan Jul 18, 2026

If you've found yourself in a situation where you need to rename a shared mailbox in Microsoft's Outlook, you're not alone. Shared mailboxes are a great collaboration tool, but what happens when you need to change the name? Can you rename a shared mailbox? Yes, you can, but it's not as straightforward as renaming a personal mailbox. Let's delve into the process, its implications, and some limitations.

35 Impressive Mailbox Designs That Will Wow Your Visitors
35 Impressive Mailbox Designs That Will Wow Your Visitors

Before we proceed, it's crucial to understand that renaming a shared mailbox isn't just about changing the name. It also involves moving all the emails, contacts, and calendar items from the old mailbox to the new one. This is because shared mailboxes are not linked to a specific user's account; they are standalone mailboxes that multiple people can access.

No cost mailbox re-do {Sprucing up the outdoors for spring series}
No cost mailbox re-do {Sprucing up the outdoors for spring series}

Understanding Shared Mailboxes

Shared mailboxes are a type of mailbox used for sharing email, Calendar, and Contact information with multiple users in your organization. They are independent of user mailboxes and can be opened and read by authorized users. Understanding this context is vital as it sets the stage for the renaming process.

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How to Give Your Mailbox a Bright Makeover | The DIY Playbook

When you create a shared mailbox, a specific naming convention is followed. This name typically reflects the purpose or the team associated with the mailbox. Over time, this name might become outdated or inaccurate, necessitating a rename. This is where the complexity starts, as renaming a shared mailbox impacts all the associated content and users.

Pre-Rename Considerations

3 Inch Modern House Numbers Letters - Etsy
3 Inch Modern House Numbers Letters - Etsy

Before proceeding with the rename, consider the following:

  • Purpose: Ensure the new name accurately reflects the mailbox's purpose or the team it's associated with.
  • Impact: Inform all users who have access to the mailbox about the rename. This ensures they are not caught off guard and understand the potential implications on their access and emails.
  • Permissions: Make sure you have the necessary permissions to manage shared mailboxes. Only Exchange administrators or users with appropriate permissions can rename a shared mailbox.

Renaming Process

a wooden mailbox with numbers on it in front of a tree and grass area
a wooden mailbox with numbers on it in front of a tree and grass area

The renaming process involves using PowerShell commands as the Exchange Admin Center doesn't support renaming shared mailboxes. Here's a step-by-step guide:

  1. Connect to Exchange Online PowerShell using remote PowerShell.
  2. Verify the current shared mailbox name.
  3. Create a new shared mailbox with the new name.
  4. Move all the emails, contacts, and calendar items from the old mailbox to the new one using the New-MigrationBatch cmdlet.
  5. Update all SendAs permissions to the new mailbox.
  6. Update the shared mailbox's membership on distribution groups as necessary.
  7. Soft delete the old shared mailbox (this retains the email data for recovery purposes if needed).

After the rename, test the mailbox thoroughly to ensure all functionality is working as expected.

a mailbox with the text 5 genius ways to repurpose mailboxes
a mailbox with the text 5 genius ways to repurpose mailboxes

Limitations and Workarounds

The renaming process has some limitations. For instance, you cannot rename a shared mailbox if it has a linked Office 365 Group. In such cases, you'll need to create a new group, re-invite the members, and recreate the shared mailbox.

DIY Mailbox Makeover
DIY Mailbox Makeover
Curb Appeal
Curb Appeal
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My Daughter's Favorite Fashion Ideas for Tween Girls--Mini Boden
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13 DIY Mailbox Plans for a Unique and Functional Mail Center
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25 Stylish Letter Box Ideas For Creative Mail
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Mailbox Makeover & Ways to Prevent The Birds From Taking Over - MY WEATHERED HOME
three mailboxes sitting on top of a wooden bench in the middle of a park
three mailboxes sitting on top of a wooden bench in the middle of a park
two mailboxes on the grass in front of a house
two mailboxes on the grass in front of a house
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DIY Modern Double Mailbox Post Plans - With Planter (PDF Download)

Another limitation is that renaming a shared mailbox does not automatically update the email address of the mailbox. You'll need to update this manually after the rename.

Workaround for Linked Office 365 Groups

If the shared mailbox is linked to an Office 365 Group, you cannot rename the mailbox directly. Here's a workaround:

  • Create a new Office 365 Group with the desired name.
  • Invite all the members of the old group to the new group.
  • Rename the shared mailbox as described above.
  • Join the new group with the renamed shared mailbox.
  • Soft delete the old Office 365 Group.

Rounding off, renaming a shared mailbox involves a careful process that requires planning and understanding of the implications. It's not just about changing the name; it's about ensuring all associated content and users are transitioned smoothly to the new mailbox. By following the steps and guidelines outlined here, you can successfully rename a shared mailbox without disrupting the flow of work. Just remember, clear communication with all affected users is key to a smooth renaming process.