Outlook on the Web

If you want to work with the shared mailbox in a web browser, you must manually add the mailbox. To add the shared mailbox to Outlook on the web, complete the following steps:

  1. Sign in to your Microsoft 365 account, and then select the Outlook app.

  2. Right-click Folders (or your mailbox name) in the navigation pane, and then select Add shared folder.

  3. Type the email address of the shared mailbox in the Add shared folder dialog box, and then select Add.

Outlook Mobile App

If you want to access a shared mailbox from your smartphone or tablet, follow these steps:

  1. Launch the Outlook app for iOS or Android and sign in to your account.

  2. Tap Add Account in the left pane, then tap Add a Shared Mailbox. 

    If you have multiple Outlook accounts, choose the one that has access to the shared mailbox. 

  3. Enter the email address. Once the process is complete, you should see your shared mailbox under your accounts in the Outlook app.

    If you want to remove a shared mailbox from the Outlook app, go to Settings > Accounts, then tap the shared mailbox and choose Delete Account.