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Add-AvailabilityAddressSpace

Applies to: Exchange Server 2010

Topic Last Modified: 2011-03-19

Use the Add-AvailabilityAddressSpace cmdlet to define the access method and associated credentials used to exchange free/busy data across forests.


Add-AvailabilityAddressSpace -AccessMethod <PerUserFB | OrgWideFB | PublicFolder | InternalProxy> -ForestName <String> [-Confirm [<SwitchParameter>]] [-Credentials <PSCredential>] [-DomainController <Fqdn>] [-ProxyUrl <Uri>] [-UseServiceAccount <$true | $false>] [-WhatIf [<SwitchParameter>]]

Parameter Required Type Description

AccessMethod

Required

Microsoft.Exchange.Data.Directory.SystemConfiguration.AvailabilityAccessMethod

The AccessMethod parameter, when assigned the PerUserFB value, causes the command to access the free/busy data in the defined per-user free/busy proxy account or group, or in the All Exchange Servers group. The PerUserFB value requires trust between the two forests. You must use either the UseServiceAccount parameter or Credentials parameter.

Use the OrgWideFB value to access the free/busy data in the per-user free/busy proxy account or group in the target forest. You must use either the UseServiceAccount parameter or Credentials parameter.

Use the PublicFolder value to access free/busy data on servers running Microsoft Exchange Server 2003. The Exchange Inter-Organization Replication tool must be running between the two forests.

ForestName

Required

System.String

The ForestName parameter specifies the SMTP domain name of the target forest for users whose free/busy data must be retrieved. If your users are distributed among multiple SMTP domains in the target forest, run the Add-AvailabilityAddressSpace command once for each SMTP domain.

Confirm

Optional

System.Management.Automation.SwitchParameter

The Confirm switch causes the command to pause processing and requires you to acknowledge what the command will do before processing continues. You don't have to specify a value with the Confirm switch.

Credentials

Optional

System.Management.Automation.PSCredential

The Credentials parameter specifies the credentials for an account that has permission to access the Availability services in the target forest.

DomainController

Optional

Microsoft.Exchange.Data.Fqdn

The DomainController parameter specifies the fully qualified domain name (FQDN) of the domain controller that writes this configuration change to Active Directory.

ProxyUrl

Optional

System.Uri

The ProxyUrl parameter specifies whether to direct a Microsoft Exchange Server 2007 Client Access server to proxy its free/busy requests through an Exchange Server 2010 Client Access server when requesting federated free/busy data for a user in another organization.

Before you can configure this setting, you must create the proper trust relationships and sharing relationships. For more information, see New-FederationTrust.

UseServiceAccount

Optional

System.Boolean

The UseServiceAccount parameter, when assigned a value of $true, uses the local Availability service account for authorization.

WhatIf

Optional

System.Management.Automation.SwitchParameter

The WhatIf switch instructs the command to simulate the actions that it would take on the object. By using the WhatIf switch, you can view what changes would occur without having to apply any of those changes. You don't have to specify a value with the WhatIf switch.

To effectively use the command, run it on a computer that has the Client Access server role installed.

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 "Availability address space settings" entry in the Client Access Permissions topic.

Error Description

Exceptions Description

This example is useful with an untrusted cross-forest Availability service, or if detailed cross-forest free/busy service isn't desired. When you're prompted by the command, type a user name and password. For an untrusted cross-forest configuration, make sure that the user doesn't have a mailbox.

Add-AvailabilityAddressSpace -ForestName <example.contoso.com> -AccessMethod OrgWideFB -Credentials <ExampleCredential>

This example is useful with a trusted cross-forest Availability service. The contoso.com forest trusts the current forest, and the specified account connects to the contoso.com forest. The specified account must be an existing account in the contoso.com forest.

Add-AvailabilityAddressSpace -ForestName <example.contoso.com> -AccessMethod PerUserFB -Credentials <ExampleCredential>

This example is useful with a trusted cross-forest Availability service. The contoso.com forest trusts the current forest and uses the service account (typically the local system account or the computer account) to connect to the contoso.com forest. Because the service is trusted, there is no issue with authorization when the current forest tries to retrieve free/busy information from contoso.com.

Add-AvailabilityAddressSpace -ForestName <example.contoso.com> -AccessMethod PerUserFB -UseServiceAccount $true

This example is useful for interoperability between Exchange 2010 and versions of Exchange earlier than Exchange 2007, for example Exchange 2003.

Add-AvailabilityAddressSpace -ForestName <example.contoso.com> -AccessMethod PublicFolder 
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