Applies to: Exchange Server 2013

This topic no longer applies to the cloud-based service. It applies only to on-premises Exchange 2013. To see the current version of the topic that applies to the cloud-based service, change the (v=exchg.150) value in the URL to (v=exchg.160).

Use the New-ActiveSyncDeviceAccessRule cmdlet to define the access levels for Exchange ActiveSync devices based on the identity of the device.

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

New-ActiveSyncDeviceAccessRule -AccessLevel <Allow | Block | Quarantine> -Characteristic <DeviceType | DeviceModel | DeviceOS | UserAgent | XMSWLHeader> -QueryString <String> [-Confirm [<SwitchParameter>]] [-DomainController <Fqdn>] [-Organization <OrganizationIdParameter>] [-WhatIf [<SwitchParameter>]]

This example creates device access rules that blocks access for iPhones that are running iOS version 6.1.1.

New-ActiveSyncDeviceAccessRule -Characteristic DeviceOS -QueryString "iOS 6.1 10B145" -AccessLevel Block

This example creates a device access rule that uses the UserAgent characteristic to allow access for Nokia E52-1 phones.

New-ActiveSyncDeviceAccessRule -Characteristic UserAgent -QueryString NokiaE521/2.00()MailforExchange -AccessLevel Allow

You can create multiple rules that define groups of devices: Allowed devices, blocked devices, and quarantined devices.

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 "Exchange ActiveSync settings" entry in the Clients and mobile devices permissions topic.


Parameter Required Type Description




The AccessLevel parameter specifies the access level of devices that are defined by the rule. Valid values for this parameter are Allow, Block and Quarantine.




The Characteristic parameter specifies the device characteristic or category that's used by the rule. Valid values for this parameter are:

  • DeviceModel

  • DeviceType

  • DeviceOS

  • UserAgent

  • XMSWLHeader




The QueryString parameter specifies the device identifier that's used by the rule. This parameter uses a text value that's used with Characteristic parameter value to define the device. Wildcards or partial matches aren't allowed.

You can use the Get-MobileDevice cmdlet to find the text values that you can use with the QueryString parameter. For example: Get-MobileDevice | Format-List DeviceOS,DeviceModel,DeviceType.




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.




This parameter is available only in on-premises Exchange 2013.

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




This parameter is reserved for internal Microsoft use.




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 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.