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Get-Mailbox (RTM)

Microsoft Exchange Server 2007 will reach end of support on April 11, 2017. To stay supported, you will need to upgrade. For more information, see Resources to help you upgrade your Office 2007 servers and clients.


Applies to: Exchange Server 2007

Use the Get-Mailbox cmdlet to view mailbox objects and attributes, to populate property pages, or to supply mailbox information to other tasks.


get-Mailbox [-Identity <MailboxIdParameter>] [-Credential <PSCredential>] [-DomainController <Fqdn>] [-OrganizationalUnit <OrganizationalUnitIdParameter>] [-ReadFromDomainController <SwitchParameter>] [-RecipientTypeDetails <RecipientTypeDetails[]>] [-ResultSize <Unlimited>] [-SortBy <String>]

get-Mailbox [-Credential <PSCredential>] [-DomainController <Fqdn>] [-OrganizationalUnit <OrganizationalUnitIdParameter>] [-ReadFromDomainController <SwitchParameter>] [-RecipientTypeDetails <RecipientTypeDetails[]>] [-ResultSize <Unlimited>] [-Server <ServerIdParameter>] [-SortBy <String>]

get-Mailbox [-Credential <PSCredential>] [-Database <DatabaseIdParameter>] [-DomainController <Fqdn>] [-OrganizationalUnit <OrganizationalUnitIdParameter>] [-ReadFromDomainController <SwitchParameter>] [-RecipientTypeDetails <RecipientTypeDetails[]>] [-ResultSize <Unlimited>] [-SortBy <String>]

get-Mailbox [-Credential <PSCredential>] [-DomainController <Fqdn>] [-Filter <String>] [-OrganizationalUnit <OrganizationalUnitIdParameter>] [-ReadFromDomainController <SwitchParameter>] [-RecipientTypeDetails <RecipientTypeDetails[]>] [-ResultSize <Unlimited>] [-SortBy <String>]

get-Mailbox [-Anr <String>] [-Credential <PSCredential>] [-DomainController <Fqdn>] [-OrganizationalUnit <OrganizationalUnitIdParameter>] [-ReadFromDomainController <SwitchParameter>] [-RecipientTypeDetails <RecipientTypeDetails[]>] [-ResultSize <Unlimited>] [-SortBy <String>]

Detailed Description

The Get-Mailbox cmdlet retrieves the attributes and objects for a mailbox. No parameters are required. If the cmdlet is used without a parameter, all mailboxes in the organization are listed.

To run the Get-Mailbox cmdlet, the account you use must be delegated the following:

  • Exchange View-Only Administrator role

For more information about permissions, delegating roles, and the rights that are required to administer Exchange Server 2007, see Permission Considerations.


To accurately evaluate the current storage quota status using the Get-Mailbox cmdlet, it is necessary to look at the UseDatabaseQuotaDefaults property in addition to the ProhibitSendQuota, ProhibitSendReceiveQuota, and IssueWarningQuota properties. A value of True for the UseDatabaseQuotaDefaults property means that the per-mailbox settings are ignored and the mailbox database limits are used. If this property is set to True and the ProhibitSendQuota, ProhibitSendReceiveQuota, and IssueWarningQuota properties are set to unlimited, the mailbox does not have unlimited size. Instead, you must reference the mailbox database storage limits to see what the limits for the mailbox are. A value of False for the UseDatabaseQuotaDefaults property means that the per-mailbox settings are used.


Parameter Required Type Description




The Anr parameter specifies a string on which to perform an ambiguous name resolution search. You can specify a partial string and search for objects with an attribute that matches that string. The default attributes that are searched are:

  • CommonName (CN)

  • DisplayName

  • FirstName

  • LastName

  • Alias




The Credential parameter specifies the user name and password to use to access the Active Directory directory service.




The Database parameter specifies the database from which to get the mailbox. You can use the following values:

  • GUID of the database

  • Database name

  • Server name\database name

  • Server name\storage group\database name

If you do not specify the server name, the cmdlet will search for the database on the local server. If you have multiple databases with the same name on the same server, you must specify the storage group.

This parameter cannot be used in conjunction with the Filter parameter.




The DomainController parameter specifies the domain controller to use to access Active Directory. Use the fully qualified domain name (FQDN) of the domain controller that you want to use.




The Filter parameter specifies one or more attributes that are used to restrict the mailboxes that are returned by the query.

This parameter cannot be used in conjunction with the Database parameter.

For detailed information about the filterable properties, see Filterable Properties for the -Filter Parameter in Exchange 2007 RTM.




The Identity parameter identifies the mailbox. You can use one of the following values:

  • GUID

  • Distinguished name (DN)

  • Domain\Account

  • User principal name (UPN)

  • LegacyExchangeDN

  • SmtpAddress

  • Alias




The OrganizationalUnit parameter specifies an organizational unit (OU), and is used to limit the results. If you use this parameter, you will only get mailboxes in the container that you specify. You can use either the OU or the domain name. If you use the OU, you must specify the canonical name of the OU.




The ReadFromDomainController parameter specifies that the user information is read from a domain controller in the user's domain. If you set the recipient scope to include all recipients in the forest, and if you do not use this parameter, it is possible that the user information is read from a global catalog with outdated information. If you use this parameter, multiple reads might be necessary to get the information.


By default, the recipient scope is set to the domain that hosts your Exchange servers.




The RecipientTypeDetails parameter specifies the type of recipients that are returned. Recipient types in Microsoft Exchange Server 2007 are divided into recipient types and subtypes. Each recipient type contains all common properties for all subtypes. For example, the type UserMailbox represents a user account in Active Directory with an associated mailbox. Because there are several mailbox types, each mailbox type is identified by the RecipientTypeDetails parameter. For example, a conference room mailbox has RecipientTypeDetails set to RoomMailbox, whereas a user mailbox has RecipientTypeDetails set to UserMailbox.

For this command, the available recipient type details are:

  • RoomMailbox

  • EquipmentMailbox

  • LegacyMailbox

  • LinkedMailbox

  • UserMailbox

  • SharedMailbox




The ResultSize parameter specifies the maximum number of results to return. If you want to return all mailboxes that match the query, use "unlimited" for the value of this parameter. The default value is 1000.




The Server parameter specifies an individual server and is used to limit the results. If you use this parameter, you will only get mailboxes that reside on the server that you specify. Use the common name of the server that you want to specify.




The SortBy parameter specifies the attribute by which to sort the results. You can sort by only one attribute at a time. You can sort by the following attributes:

  • Alias

  • Display name

  • Name

The results will be sorted in ascending order.

Input Types

Return Types


Error Description



Exceptions Description



The first example shows how to get a list of all of the mailboxes in your organization.

The second example shows how to get a list of all the mailboxes in your organization in the Users container in the domain.

The third example shows how to get all the mailboxes that resolve from the ambiguous name resolution search on the string "Chr" that are in the domain of DC01. This will return mailboxes for users such as Chris Ashton, Christian Cletus, and Christa Geller.

Get-Mailbox -ResultSize unlimited
Get-Mailbox -OrganizationalUnit Users
Get-Mailbox -Anr Chr -DomainController DC01