Reconnecting mailboxes

When Exchange disconnects a mailbox after running either the Disable-Mailbox or Remove-Mailbox cmdlet, it stamps the current date and time in the mailbox’s DisconnectDate property. This marks the start of the clock that ticks down until the retention time expires. The retention time for deleted mailboxes is a property of a mailbox database and can differ from the default 30 days. For example, for legal reasons, you might want to remove or retain mailboxes for some classes of employees for different periods. This is easily achieved by placing the employee mailboxes in databases that are configured with different retention periods. You can use this command to see the current deleted mailbox retention period for all the databases ...

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