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Applies to: Exchange Online, Exchange Online Protection, 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 Remove-MalwareFilterPolicy cmdlet to remove malware filter policies from your organization.

When a policy is removed and there are rules associated with it, the rules are not removed when the policy is removed. This is by design. If you want to remove the associated rules, you need to do this separately via the Remove-MalwareFilterRule cmdlet.

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

Remove-MalwareFilterPolicy -Identity <MalwareFilterPolicyIdParameter> [-Confirm [<SwitchParameter>]] [-DomainController <Fqdn>] [-Force <SwitchParameter>] [-WhatIf [<SwitchParameter>]]

This example removes the malware filter policy named Contoso Malware Filter Policy

Remove-MalwareFilterPolicy "Contoso Malware Filter Policy"

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 "Anti-malware" entry in the Anti-spam and anti-malware permissions topic.


Parameter Required Type Description




The Identity parameter specifies the malware filter policy you want to remove. You can use any value that uniquely identifies the policy. For example, you can use the name, GUID, or distinguished name (DN) of the malware filter policy.




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.




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 Force switch specifies whether to suppress warning or confirmation messages. You can use this switch to run tasks programmatically where prompting for administrative input is inappropriate. You don't need to specify a value with this switch.




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.

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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