Sometimes people would manually add a second or shared mailbox account into their Outlook client. This shouldn't be necessary for any BU addresses, as shared mailboxes should automatically appear within Outlook if you have been given access. We suggest removing any secondary mailboxes and let them be added automatically in order to prevent errors and popups. Here are the steps:
- Within the Outlook client click File
- then choose "account settings"
- select "account settings" again
- then on the "email" tab see if there are more than 1 accounts which show up.
- highlight the shared account and click remove