Outlook: Add a Shared Mailbox

We are currently upgrading from Windows 10 to Windows 11. The desktop interface may appear differently than presented in this documentation. Please bear with us as we update and resolve these discrepancies. This process will not affect the online experience.

Refer to https://support.microsoft.com/en-US for additional information on Microsoft subjects.
Some instructions require appropriate permissions to complete the task.

Outlook on Web

Login with firstname.lastname@thrivepet.com.
On the left-hand side, right-click Folders.
Select Add Shared Folder.
Enter a name or email address from the pop-up window for the shared mailbox you'd like to add.
Once added, the new mailbox is located on the left-hand toolbar, under Email and Folders.

It may take a few minutes for the mailbox to appear; after the Technology support/administrator has added a member to a shared mailbox, close and restart Outlook; the shared mailbox should automatically display in the Folder pane in Outlook.

Desktop New Outlook

Open the ellipses next to Shared with Me.
Select Add shared folder or mailbox.
Enter the name or email address of a user or shared mailbox.
Select Add.

It may take a few minutes for the mailbox to appear. After the Technology support/administrator has added a member to a shared mailbox, close and restart Outlook. The shared mailbox should then automatically display in the Folder pane in Outlook.

Open Mailbox in New Tab

If you have not set a profile picture, click on your profile picture or initials.
Select Open another mailbox.
Enter the email address for the shared mailbox.

Warning! If this is the first time you've tried to open the mailbox, you may need to select the prompt Use this address.

Click Open when the address is populated in the Open another mailbox dialog.
If you have permission to access the mailbox, it will open.

You can also access shared mailboxes with a direct URL. Replace yoursharedmailbox@thrivepet.com with the email address for your mailbox in this format: https://outlook.office.com/mail/yoursharedmailbox@thrivepet.com.com/

Click here to expand...

Administration

Technology is generally responsible for administering this procedure and may select others to assist with its execution. The duties include, but are not limited to, the following:

Assisting with the implementation and enforcement of this Procedure and
Circulating this Procedure to all Company Personnel

Contact

Contact ithelp@thrivepet.com with any questions regarding any of the provisions of this procedure.

Amendment and Revision History

We are committed to continuously reviewing and updating our policies and procedures. The Company, therefore, reserves the right to amend, alter, or terminate this policy/procedure at any time and for any reason, subject to applicable law. When material changes are made, Thrive will post the changes on our internal website and provide Team Members with subsequent notice consistent with local laws or regulations.

Department	Technology
Subject	M365: Outlook
Last Update	April 24, 2025
Functional Specialist	Daniel Ochoa, Microsoft 365 and Azure Manager
Data Classification	Public Internal ☑️ Restricted Personal Information
Updated By	Revisions	Date	Revision Number
Daniel Ochoa, Microsoft 365 and Azure Manager	Convert to Confluence No changes	7/19/2022 7/14/23	1.1
Justin Benjamin Daniel Ochoa	Update process to account for standardized email addresses no changes, process stable	4/29/24 6/11/24	1.2
Jeannie Flaherty	Add Win 11 Desktop New Outlook instructions	4/24/25	1.3