Microsoft 365: Adding a shared mailbox to Outlook

Open Outlook Start > Outlook. In Outlook, follow this path:

• File
• Account settings > Account settings...

• If you have more than one account, select a Microsoft Exchange account (firstname.lastname@helsinki.fi account shown in the image).
• Click Change.

• Click More Settings.

• A new window is opened. Go to the Advanced tab and click Add.

• Enter the beginning of the e-mail address of the shared mailbox (without @helsinki.fi) and click OK.

• This returns you to the previous window, which now shows the added folder. Click OK.

• You will return to the Server Settings window. Click Next.

• Finally, click Done. The program will inform you that the changes will take effect once you restart the program, so you can close and reopen Outlook at this point.

• The mailbox will now show in your menu.

• Open Microsoft Outlook: Then select File > Open > Shared Mailbox...

• In the search field of the opened Open Mailbox... window (1), enter the name of the mailbox you are looking for in the search field, (2) select the correct shared mailbox from the options below and then click (3) Add.

• The shared mailbox will then show in your menu.