Microsoft Exchange Server 2016 PowerShell Cookbook - Fourth Edition

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You can think of a collection as an array created from the output of a command. For example, the Get-Mailbox cmdlet can be used to create an object that stores a collection of mailboxes, and we can work with this object just as we would with any other array. You'll notice that, when working with collections, such as a set of mailboxes, you can access each mailbox instance as an array element. Consider the following example:

First, we retrieve a list of mailboxes that start with the letter t and assign that to the $mailboxes variable. From looking at the items in the $mailboxes object, we can see that the testuser mailbox is ...