Remove-ClientAccessRule
Note
Beginning in October 2022, client access rules were deprecated for all Exchange Online organizations that weren't using them. Client access rules will be deprecated for all remaining organizations on September 1, 2025. If you choose to turn off client access rules before the deadline, the feature will be disabled in your organization. For more information, see Update on Client Access Rules Deprecation in Exchange Online.
This cmdlet is functional only in Exchange Server 2019 and in the cloud-based service. Some parameters and settings might be exclusive to one environment or the other.
Use the Remove-ClientAccessRule cmdlet to remove client access rules. Client access rules help you control access to your cloud-based organization based on the properties of the connection.
For information about the parameter sets in the Syntax section below, see Exchange cmdlet syntax.
Syntax
Default (Default)
Remove-ClientAccessRule
[-Identity] <ClientAccessRuleIdParameter>
[-Confirm]
[-DomainController <Fqdn>]
[-WhatIf]
[<CommonParameters>]
Description
Client access rules are like mail flow rules (also known as transport rules) for client connections to your organization. You use conditions and exceptions to identify the connections based on their properties, and actions that allow or block the connections.
You need to be assigned permissions before you can run this cmdlet. Although this article lists all parameters for the cmdlet, you might not have access to some parameters if they aren't included in the permissions assigned to you. To find the permissions required to run any cmdlet or parameter in your organization, see Find the permissions required to run any Exchange cmdlet.
Examples
Example 1
Remove-ClientAccessRule "Block Client Connections from 192.168.1.0/24"
This example removes the existing client access rule named "Block Connections from 192.168.1.0/24".
Parameters
-Confirm
Applicable: Exchange Server 2013, Exchange Server 2016, Exchange Server 2019, Exchange Server SE, Exchange Online, Exchange Online Protection
The Confirm switch specifies whether to show or hide the confirmation prompt. How this switch affects the cmdlet depends on if the cmdlet requires confirmation before proceeding.
- Destructive cmdlets (for example, Remove-* cmdlets) have a built-in pause that forces you to acknowledge the command before proceeding. For these cmdlets, you can skip the confirmation prompt by using this exact syntax:
-Confirm:$false. - Most other cmdlets (for example, New-* and Set-* cmdlets) don't have a built-in pause. For these cmdlets, specifying the Confirm switch without a value introduces a pause that forces you acknowledge the command before proceeding.
Parameter properties
| Type: | SwitchParameter |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
| Aliases: | cf |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-DomainController
Applicable: Exchange Server 2013, Exchange Server 2016, Exchange Server 2019, Exchange Server SE
This parameter is available only in on-premises Exchange.
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.
Parameter properties
| Type: | Fqdn |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-Identity
Applicable: Exchange Server 2013, Exchange Server 2016, Exchange Server 2019, Exchange Server SE, Exchange Online, Exchange Online Protection
The Identity parameter specifies the client access rule that you want to remove. You can use any value that uniquely identifies the client access rule. For example:
- Name
- Distinguished name (DN)
- GUID
Parameter properties
| Type: | ClientAccessRuleIdParameter |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
Parameter sets
(All)
| Position: | 1 |
| Mandatory: | True |
| Value from pipeline: | True |
| Value from pipeline by property name: | True |
| Value from remaining arguments: | False |
-WhatIf
Applicable: Exchange Server 2013, Exchange Server 2016, Exchange Server 2019, Exchange Server SE, Exchange Online, Exchange Online Protection
The WhatIf switch simulates the actions of the command. You can use this switch to view the changes that would occur without actually applying those changes. You don't need to specify a value with this switch.
Parameter properties
| Type: | SwitchParameter |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
| Aliases: | wi |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
CommonParameters
This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutBuffer, -OutVariable, -PipelineVariable, -ProgressAction, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.
Inputs
Input types
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.
Outputs
Output types
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.