Commands › Exchange Online

Remove-TenantAllowBlockListItems

Exchange Online ExchangeOnlineManagement Remove-*

Remove entries from the Tenant Allow/Block List in the Microsoft Defender portal.

Quick start script

# Remove-TenantAllowBlockListItems — quick start (serv365.ai)
# 1. Connect (app-only shown; interactive: omit the certificate parameters)
Connect-ExchangeOnline -CertificateThumbprint $thumb -AppId $appId -Organization $org

# 2. Capture the current state first — you cannot roll back what you never recorded
$before = Get-TenantAllowBlockListItems
$before | Format-List

# 3. Make the change
Remove-TenantAllowBlockListItems -Entries <String[]> -Ids <String[]> -ListType <ListType>

# 4. Verify and diff
$after = Get-TenantAllowBlockListItems
Compare-Object ($before | Out-String) ($after | Out-String)

Syntax — 2 parameter sets

Entries

Remove-TenantAllowBlockListItems -Entries <String[]> -ListType <ListType>
 [-ListSubType <ListSubType>]
 [-OutputJson]
 [<CommonParameters>]

Ids

Remove-TenantAllowBlockListItems -Ids <String[]> -ListType <ListType>
 [-ListSubType <ListSubType>]
 [-OutputJson]
 [<CommonParameters>]

Parameters (5)

Parameter	Type	Required	What it controls
-Entries	String[]	yes	The Entries parameter specifies the entries that you want to remove based on the ListType parameter value. Valid values are:
-Ids	String[]	yes	The Ids parameter specifies the entries that you want to remove. This value is shown in the Identity property in the output of the Get-TenantAllowBlockListItems cmdlet.
-ListType	ListType	yes	The ListType parameter specifies the type of entry that you want to remove. Valid values are:
-ListSubType	ListSubType		The ListSubType specifies further specifies the type of entry that you want to remove. Valid values are:
-OutputJson	SwitchParameter		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.

Reference facts derived from Microsoft documentation, © Microsoft, licensed CC BY 4.0; restructured with original guidance by serv365.ai.