To include the shared mailbox as a parallel mailbox, the following steps must be carried out by authorised persons under Microsoft Outlook 2016:

• Exit Outlook
• Control Panel / Mail (Microsoft Outlook 2016) (32-bit) / E-mail Accounts… / Card E-mail / New…
  • If the item “Mail (Microsoft Outlook 2016) (32-bit)” is not visible, please change the item “Display” in the top right of the “Control Panel” window from “Category” to “Large Icons”.
• In the “Add account” window, enter data for the shared mailbox:
  • Your name: <do not enter anything, remains empty>.
  • Email address: Enter the email address of the shared mailbox
  • Password: <do not enter anything, leave blank>
  • Click on “Next
• Outlook may ask for access data. Please enter your personal access data here
  • cf: Microsoft Outlook 2019 / 2016
• Close all windows with “OK”, “Next”, “Finish” and “Close”.
• Start Outlook