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 Enable-MalwareFilterRule cmdlet to view malware filter rules in your organization.

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

Get-MalwareFilterRule [-Identity <RuleIdParameter>] [-DomainController <Fqdn>] [-State <Enabled | Disabled>]

This example retrieves a summary list of all malware filter rules in your organization.


This example retrieves detailed configuration information for the malware filter rule named Contoso Recipients.

Get-MalwareFilterRule "Contoso Recipients" | Format-List

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




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,




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




The State parameter filters the results by enabled or disabled malware filter rules. Valid input for this parameter is Enabled or Disabled.




This parameter is reserved for internal Microsoft use.

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.