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Applies to: Exchange Online, Exchange Server 2016

This cmdlet is available in on-premises Exchange Server 2016 and in the cloud-based service. Some parameters and settings may be exclusive to one environment or the other.

Use the Get-PublicFolderStatistics cmdlet to retrieve statistical information about public folders, such as folder size and last logon time.

For information about the parameter sets in the Syntax section below, see Syntax.

Get-PublicFolderStatistics [-Identity <PublicFolderIdParameter>] [-DomainController <Fqdn>] [-Mailbox <MailboxIdParameter>] [-ResultSize <Unlimited>]

This example retrieves statistics about the public folder Marketing\2013\Pamphlets. The output of the Get-PublicFolderStatistics command is piped to the Format-List command so that all the available information is displayed in the result.

Get-PublicFolderStatistics -Identity "\Marketing\2013\Pamphlets" | Format-List

You need to be assigned permissions before you can run this cmdlet. Although all parameters for this cmdlet are listed in this topic, you may not have access to some parameters if they're not included in the permissions assigned to you. To see what permissions you need, see the "Public folders" entry in the Sharing and collaboration permissions topic.


Parameter Required Type Description




This parameter is available only in on-premises Exchange 2016.

The DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory. You identify the domain controller by its fully qualified domain name (FQDN). For example, dc01.contoso.com.




The Identity parameter specifies the GUID or public folder name that represents a specific public folder. You can also include the path using the format \TopLevelPublicFolder\PublicFolder.

You can omit the parameter label so that only the public folder name or GUID is supplied.




The Mailbox parameter specifies the identity of the hierarchy public folder mailbox.




The ResultSize parameter specifies the maximum number of results to return. If you want to return statistics for all public folders that match the query, use unlimited for the value of this parameter. The default value is 100.




This parameter is reserved for internal Microsoft use.

To see the input types that this cmdlet accepts, see Cmdlet Input and Output Types. If the Input Type field for a cmdlet is blank, the cmdlet doesn’t accept input data.

To see the return types, which are also known as output types, that this cmdlet accepts, see Cmdlet Input and Output Types. If the Output Type field is blank, the cmdlet doesn’t return data.

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