Finding Exchange Mailboxes

Microsoft Exchange 2013

To find the number of mailboxes, simply use the Exchange cmdlets and have Measure-Object count the results:

Get-Mailbox –ResultSize Unlimited | 
  Measure-Object |
  Select-Object -ExpandProperty Count

Likewise, to find all shared mailboxes, try this:

Get-Mailbox –ResultSize Unlimited -RecipientTypeDetails SharedMailbox | 
  Measure-Object |
  Select-Object -ExpandProperty Count

And to find only user mailboxes, here is the adjustment needed:

Get-Mailbox –ResultSize Unlimited -RecipientTypeDetails UserMailbox | 
  Measure-Object |
  Select-Object -ExpandProperty Count

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