Using classic Outlook for Windows in business environments
Hi Chris Leperd
Thank you for reaching out to the Microsoft Q&A Forum.
If you're using Microsoft 365, shared mailboxes are created through the Microsoft 365 admin center rather than directly in Outlook.
To create a shared mailbox:
- Sign in to the Microsoft 365 admin center: Microsoft 365 Admin Center
- Go to Teams & groups > Shared mailboxes.
- Select Add a shared mailbox.
- Enter the mailbox name and email address, then save the changes.
- Once the mailbox has been created, select Add members to your shared mailbox and add the users who should have access to it.
After the shared mailbox is created, you can manage mailbox permissions such as Full Access, Send As, and Send on Behalf if needed.
For detailed instructions, please refer to: Create a shared mailbox - Microsoft 365 admin | Microsoft Learn
I hope this helps.
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