Accessing Multiple Mailboxes
Giving Permissions to Access Mailboxes
First, login to the account whose mailbox you would like to access (in this case email@example.com)
On the Office 365 Home Page, Select the Mail Icon.
On the Mail Home Page, Right Click the Inbox
This will open up the Permissions pane.
The “Plus” Symbol - In order to add a new user that can access the mailbox.
Type in the email address you would like to give permissions to (in this case firstname.lastname@example.org) and press Add.
Highlight the Account you want to give permissions
Permission Level Dropdown Menu
Press OK to close the Permissions pane
N.B: Now you must logout of this account and login to the account that you would like to add the mailbox to (in this case email@example.com)
Adding the Mailbox to the Main Account
On the Mail App home page
This will open a new folder where you can see the account name
Right Click the Account name and select Add Shared Folder.
Type the email address of the account whose mailbox you would like to access in the box (in this case firstname.lastname@example.org)
The mailbox should now be available on this account, under the “More” tab.
N.B: For multiple mailboxes this process has to be repeated each time to add a new Mailbox.
Removing the Shared Mailbox
Right Click the Mailbox you would like to remove.
The shared folder has now been removed.