If you are using the classic Outlook client, you can add a shared mailbox to it by following these steps: If the Add option is grayed out, you probably have multiple Exchange accounts set up in ...

They’re also great when one user is out of the office in Outlook and someone else needs to complete their work while they are away. Setting up and configuring a shared mailbox can be complicated ...

If Outlook is stuck on Updating this folder ... including the shared mailbox. This can clear up any corrupted or incorrect settings that might prevent the shared mailbox from syncing properly.