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Microsoft 365 (Outlook for Mac) - Subscribe/Unsubscribe to an account

This document explains how to subscribe to (or 'access') an account in Outlook for Mac for which you have been linked to (or been granted full mailbox permissions). If you have only been granted permissions to a specific calendar or email folder of another account, use the following instructions instead: User or Service Account | Resource Account.

Important:

  • You must have full mailbox permissions to the account you are attempting to subscribe to.
  • If you are linked to a NetID or Service account, you are automatically provided full mailbox permissions and send-as permissions to the account.
  • If you are set as the owner of a resource account, you are granted full mailbox permissions.
  • The service account must be visible in the Global Address List (GAL).
  • If you know the account's credentials, use these instructions to add another account to your Outlook configuration.

Adding/subscribing to an account

  1. Start Outlook.
  2. Select the Tools menu and then select Accounts... from the sub-menu.
  3. From the "Accounts" window make sure your Office 365 account is selected in the left-hand pane and click the Delegation and Sharing... button. Note: If you are not using 'New Outlook', you will need to click on Advanced | Delegates action.
  4. Within the next window select the Shared With Me tab. Note: If you are not using 'New Outlook', the 'Delegates' tab will provide you access to the 'Open these additional mailboxes' setting.
  5. Click the + button at bottom of window. Note: If you are not using 'New Outlook', click the + button under the 'Open these additional mailboxes' setting.
  6. On the "Open Mailbox..." window, enter the email address or the name of the account you are searching for.

    If you do not see the account you're looking for in this list, it may not be a searchable address in the Global Address List. For instructions, please refer to our documentation here.

  7. Select the account in the search results and then click Add.
  8. Close all the remaining windows.

Depending on the permissions you have been granted, in a few minutes, you should be able to interact with the account.

Removing/unsubscribing from an account

  1. Start Outlook.
  2. Select the Tools menu and then select Accounts... from the sub-menu.
  3. From the "Accounts" window make sure your Office 365 account is selected in the left-hand pane and click the Delegation and Sharing button.
  4. Within the next window select the Shared With Me tab.
  5. Select the account you want to remove within the box titled Open these additional mailboxes:r and click on the - icon.
  6. Click Done.
  7. Close the 'Accounts' window.

    Note: If the account is not removed, please restart Outlook.


Keywords:
microsoft office365 o365 m365 microsoft 365 send as send on behalf of delegates full mailbox permissions read write service netid subscribe access open add remove delete unsubscribe 2016 2019 subscription 
Doc ID:
45604
Owned by:
O365 S. in Microsoft 365
Created:
2014-12-12
Updated:
2023-05-03
Sites:
DoIT Help Desk, Microsoft 365