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Set-TenantAllowBlockListSpoofItems

This cmdlet is available only in the cloud-based service.

Use the Set-TenantAllowBlockListSpoofItems cmdlet to modify spoofed sender entries in the Tenant Allow/Block List.

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

Syntax

Set-TenantAllowBlockListSpoofItems
   [-Identity] <HostedConnectionFilterPolicyIdParameter>
   -Action <String>
   -Ids <String[]>
   [-Confirm]
   [-WhatIf]
   [<CommonParameters>]

Description

This cmdlet allows or blocks spoof pairs (the combination of the spoofed user and the sending infrastructure) in the Tenant Allow/Block List.

You need to be assigned permissions before you can run this cmdlet. Although this topic lists all parameters for the cmdlet, you may not have access to some parameters if they're not 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

Get-TenantAllowBlockListSpoofItems | Format-Table SpoofedUser,SendingInfrastructure,SpoofType,Action,Identity

Set-TenantAllowBlockListSpoofItems -Identity Default -Action Block -Ids 375e76f1-eefb-1626-c8bc-5efefd057488,f8cb0908-8533-1156-ce7b-9aebd685b0eb

This example bocks the specified spoof pairs. You get the Ids parameter values from the output of Get-TenantAllowBlockListSpoofItems command (the Identity property).

Example 2

(Get-TenantAllowBlockListSpoofItems -SpoofType External | Select-Object -Property Identity).Identity | Remove-TenantAllowBlockListSpoofItems -Identity Default

This example removes all external spoof pairs from the Tenant Allow/Block List.

Parameters

-Action

The Action parameter specifies whether this entry is an allow or block spoofed sender entry. Valid values are:

  • Allow
  • Block
Type:String
Position:Named
Default value:None
Required:True
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Security & Compliance, Exchange Online Protection

-Confirm

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.
Type:SwitchParameter
Aliases:cf
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Security & Compliance, Exchange Online Protection

-Identity

The Identity parameter uses the value Default.

Type:HostedConnectionFilterPolicyIdParameter
Position:0
Default value:None
Required:True
Accept pipeline input:True
Accept wildcard characters:False
Applies to:Exchange Online, Security & Compliance, Exchange Online Protection

-Ids

The Ids parameter specifies the spoof pair that you want to modify. A valid value is the Identity property value from the output of the Get-TenantAllowBlockListSpoofItems cmdlet. You can specify multiple values separated by commas.

Type:String[]
Position:Named
Default value:None
Required:True
Accept pipeline input:True
Accept wildcard characters:False
Applies to:Exchange Online, Security & Compliance, Exchange Online Protection

-WhatIf

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.

Type:SwitchParameter
Aliases:wi
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Security & Compliance, Exchange Online Protection