It is recommend that you use this method if you want to view and manage the email for the shared mailbox in its own browser window.
To open a shared mailbox in a separate browser window then proceed as follows from your account in Outlook on the web.
- On the Outlook on the web navigation bar, click on the portrait in the top right hand corner.
A list appears.
- From the list, click Open another mailbox.
The Open another mailbox dialogue box appears.
- Type the email address of the other mailbox that you want to open.
The mailbox name and email address appears in the dialogue box.
- Click Open.
Another Outlook on the web session opens in a separate window, allowing access to the other mailbox.
If you mistype the email address of the mailbox, a second window opens alerting you that the webpage can’t be found. Try retyping the email address