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Get-TenantAllowBlockListItems

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

Use the Get-TenantAllowBlockListItems cmdlet to view entries in the Tenant Allow/Block List in the Microsoft Defender portal.

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

Syntax

Get-TenantAllowBlockListItems
   -ListType <ListType>
   [-ExpirationDate <DateTime>]
   [-Allow]
   [-Block]
   [-Entry <String>]
   [-ListSubType <ListSubType[]>]
   [-OutputJson]
   [<CommonParameters>]
Get-TenantAllowBlockListItems
   -ListType <ListType>
   [-NoExpiration]
   [-Allow]
   [-Block]
   [-Entry <String>]
   [-ListSubType <ListSubType[]>]
   [-OutputJson]
   [<CommonParameters>]

Description

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-TenantAllowBlockListItems -ListType Url -Block

This example returns all blocked URLs.

Example 2

Get-TenantAllowBlockListItems -ListType FileHash -Entry "9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08"

This example returns information for the specified file hash value.

Example 3

Get-TenantAllowBlockListItems -ListType Url -ListSubType AdvancedDelivery

This example returns information for all allowed third-party phishing simulation URLs. For more information, see Configure the advanced delivery policy for third-party phishing simulations and email delivery to SecOps mailboxes.

Parameters

-Allow

The Allow switch filters the results for allow entries. You don't need to specify a value with this switch.

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

-Block

The Block switch filters the results for block entries. You don't need to specify a value with this switch.

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

-Entry

The Entry parameter filters the results based on the ListType parameter value. Valid values are:

  • FileHash: The exact SHA256 file hash value.
  • Sender: The exact domain or email address value.
  • Url: The exact URL value.
  • IP: IPv6 addresses only. Single IPv6 addresses in colon-hexadecimal or zero-compression format or CIDR IPv6 ranges from 1 to 128.

This value is shown in the Value property of the entry in the output of the Get-TenantAllowBlockListItems cmdlet.

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

-ExpirationDate

The ExpirationDate parameter filters the results by expiration date in Coordinated Universal Time (UTC).

To specify a date/time value for this parameter, use either of the following options:

  • Specify the date/time value in UTC: For example, "2021-05-06 14:30:00z".
  • Specify the date/time value as a formula that converts the date/time in your local time zone to UTC: For example, (Get-Date "5/6/2020 9:30 AM").ToUniversalTime(). For more information, see Get-Date.
Type:DateTime
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Security & Compliance, Exchange Online Protection

-ListSubType

The ListSubType parameter filters the results by subtype. Valid values are:

  • AdvancedDelivery
  • Tenant: This is the default value.
Type:ListSubType[]
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Security & Compliance, Exchange Online Protection

-ListType

The ListType parameter specifies the list to view. Valid values are:

  • FileHash
  • Sender
  • Url
  • IP
Type:ListType
Position:Named
Default value:None
Required:True
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Security & Compliance, Exchange Online Protection

-NoExpiration

The NoExpiration switch filters the results by entries that are set to never expire. You don't need to specify a value with this switch.

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

-OutputJson

The OutputJson switch specifies whether to return all entries in a single JSON value. You don't need to specify a value with this switch.

You use this switch to prevent the command from halting on the first entry that contains a syntax error.

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