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Outlook open another mailbox

On a Mac

  1. Open Outlook.
  2. Go to File > Open Shared Mailbox, to open a shared or delegated mailbox.
  3. Type the complete email address (info@contoso.com) of the mailbox you wish to open next to the magnifying glass.
  4. The account should appear in the space below and the Add button should turn blue.
  5. Select Add.

On a PC:

  1. Open Outlook.
  2. Choose the File tab in the ribbon.
  3. Choose Account Settings, then select Account Settings from the menu.
  4. Confirm you are on the Email tab.
  5. Make sure the correct account with permissions to the other mailbox is highlighted, then choose Change.
  6. Choose More Settings > Advanced > Add.
  7. Type the shared email address, such as info@contoso.com.
  8. Choose OK > OK.
  9. Choose Next > Finish > Close.

In Outlook web access:

  1. Login into your individual email via Outlook web access, click on your profile icon in the top-right corner.
  2. In the expanded window select “Open Another Mailbox”.
  3. Type the email address in the popup window and select the appropriate account from the search results.
  4. The shared email box will open in a new browser window. 

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