If you have been given access to a shared mailbox, follow the instructions below to add the mailbox in Outlook.
- Select File
- Select Account Settings
- Select Account Settings again
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- Select Change
- Select More Settings
- Select the Advanced Tab
- Select Add to add the mailbox and type the name of the shared mailbox
- Make sure that these two boxes are not checked but Use Cached Exchange Mode is checked
- Select Apply
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- Select OK
- Select OK
- Select Close
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- Select File
- Select Exit to close Outlook and open it up again.
The first time you open Outlook after you have made the change, it can take a little longer to load. The shared mailbox will be below your mailbox.
If this is a shared calendar, go to your Calendars and it will be listed there.
In Office Online https://outlook.office365.com/owa, you can open another mailbox and access the shared mailbox that way.
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