Outlook - Adding a shared mailbox to Microsoft Outlook.

Creation date: 9/24/2025 1:53 PM    Updated: 9/24/2025 1:53 PM   email outlook shared shared mailbox

  • These steps may vary with different versions of Microsoft Outlook, but the basic process is the same.
  • This only applies to installed versions of Microsoft Office.
  • This method will only allow you to access the shared mailbox from outlook without having to use a separate application. You will have to manually monitor and switch between the accounts.

  1. Add the mailbox as a separate account using the email address for the shared mailbox.


  2. Use your own credentials for the authentication process.
    1. Select “Sign in with another account”


    2. Change the login to your account and complete the authentication process.
Software related issues.