End-users can manage multiple Hosted Email Security End User Quarantine console accounts by using a single account to log on. After an end-user begins managing an account, they can view the quarantined messages and set the Approved Senders associated with that account.
End-users log on with their primary account, and then specify one of their managed accounts or All managed accounts at the top of the screen to view Quarantined messages and set Approved Senders for the specified account or accounts.
After an end-user begins managing an account, that managed account will be unable to log on to the End User Quarantine console. The managed account will be able to log on again only if the account management relationship is removed. To allow the account to log on again, the primary account can remove the managed account from the Managed Accounts screen of the End User Quarantine console.
Adding a managed account does not change the credentials for that account.
The Hosted Email Security administrator console allows you to enable or disable (enabled by default) the ability of users to add managed accounts. Disabling the feature does not change the account management relationship of accounts that end-users have already added.
The toggle button shows the current enabled 
or disabled 
state of the setting. Click the button to switch the state of the setting.
End-users can always remove accounts from their list of managed accounts. However, end-users can only add management of accounts under the following conditions:
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The Hosted Email Security administrator has enabled the feature.
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The account is a registered End User Quarantine console account.
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The account is not currently a managed account of another End User Quarantine console account.
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The end-user is able to open the confirmation email message sent to the account address.
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The end-user has the End User Quarantine console password for the account.