Microsoft Outlook 2016 › Security › Trust Center
Show Outlook Loop components for supported apps.
Supported on SUPPORTED_Windows7 (defined in the Windows templates)
What it does
This policy controls whether Outlook displays Loop components that are supported by installed apps without requiring users to explicitly choose to load them. If you enable this policy setting, Outlook will automatically display Loop components in emails. This applies to all messages or specifically to messages that originate within the recipient's local tenant or organization. This might involve contacting servers used by the installed apps to retrieve Loop components. If you disable this policy setting, Outlook will not load content from external servers automatically, unless the sender is included in the Safe Senders list. Recipients will have the option to manually load Loop components from untrusted senders on a message-by-message basis. If you do not set this policy setting, Outlook will default to the “enabled" setting. Note: Loop components included in messages located in the Junk Mail folder will not load automatically, regardless of the policy setting specified. Loop components will only be shown for apps that are installed, ensuring security and a tailored experience in Outlook.
What it writes
- Hive
- HKEY_CURRENT_USER
- Registry key
software\policies\microsoft\office\16.0\outlook\options\mail- Value name
showoutlookloopcomponentsforsupportedapps- When enabled
- DWORD 1
- When disabled
- DWORD 0
Why it needs changes for Intune
- Policy references a Windows supportedOn definition.
- ADMX-INTUNE-WINDOWS-SUPPORTEDON-REFERENCE
Configure and deploy
Choose a state; the output below is generated from the template for exactly that.
Enabled · User · template defaults
Registry file (.reg)
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail]
"showoutlookloopcomponentsforsupportedapps"=dword:00000001
PowerShell
$ErrorActionPreference = 'Stop'
function Set-RegistryValue {
param(
[Parameter(Mandatory = $true)][string] $Path,
[Parameter(Mandatory = $true)][string] $Name,
[Parameter(Mandatory = $true)][string] $PropertyType,
[Parameter(Mandatory = $true)][object] $Value
)
if (-not (Test-Path -LiteralPath $Path)) {
New-Item -Path $Path -Force | Out-Null
}
New-ItemProperty -LiteralPath $Path -Name $Name -PropertyType $PropertyType -Value $Value -Force | Out-Null
}
function Remove-RegistryValue {
param(
[Parameter(Mandatory = $true)][string] $Path,
[Parameter(Mandatory = $true)][string] $Name
)
if (Test-Path -LiteralPath $Path) {
Remove-ItemProperty -LiteralPath $Path -Name $Name -Force -ErrorAction SilentlyContinue
}
}
function Clear-RegistryKeyValues {
param(
[Parameter(Mandatory = $true)][string] $Path
)
if (-not (Test-Path -LiteralPath $Path)) {
return
}
foreach ($propertyName in (Get-Item -LiteralPath $Path).Property) {
Remove-ItemProperty -LiteralPath $Path -Name $propertyName -Force -ErrorAction SilentlyContinue
}
}
# Policy: Show Outlook Loop components for supported apps.
# Name: L_ShowOutlookLoopComponentsForSupportedApps
# Scope: User
# State: Enabled
# Source: outlk16.admx
Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail' -Name 'showoutlookloopcomponentsforsupportedapps' -PropertyType 'DWord' -Value 1
- The OMA-URI is an inferred ADMX-backed Policy CSP candidate derived from the source ADMX file name and policy name.
- Some Microsoft policies use built-in Policy CSP pages whose area names don't match the ADMX file name, so verify the candidate against Microsoft Learn before deployment.
ADMX profile candidate (OMA-URI)
./User/Vendor/MSFT/Policy/Config/ADMX_outlk16/L_ShowOutlookLoopComponentsForSupportedAppsADMX SyncML candidate
<SyncML xmlns="SYNCML:SYNCML1.2">
<SyncBody>
<Replace>
<CmdID>1</CmdID>
<Item>
<Meta>
<Format>chr</Format>
<Type>text/plain</Type>
</Meta>
<Target>
<LocURI>./User/Vendor/MSFT/Policy/Config/ADMX_outlk16/L_ShowOutlookLoopComponentsForSupportedApps</LocURI>
</Target>
<Data><enabled/></Data>
</Item>
</Replace>
<Final/>
</SyncBody>
</SyncML>Intune remediation scripts
Detection
$ErrorActionPreference = 'Stop'
$reasons = [System.Collections.Generic.List[string]]::new()
function Test-RegistryValueExists {
param(
[Parameter(Mandatory = $true)][string] $Path,
[Parameter(Mandatory = $true)][string] $Name
)
if (-not (Test-Path -LiteralPath $Path)) {
return $false
}
return $null -ne (Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction SilentlyContinue)
}
function Test-RegistryValueEquals {
param(
[Parameter(Mandatory = $true)][string] $Path,
[Parameter(Mandatory = $true)][string] $Name,
[Parameter(Mandatory = $true)][string] $Kind,
[Parameter(Mandatory = $true)][object] $Expected
)
if (-not (Test-Path -LiteralPath $Path)) {
return $false
}
$valueObject = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction SilentlyContinue
if ($null -eq $valueObject) {
return $false
}
$actual = $valueObject.$Name
switch ($Kind) {
'String' { return [string]$actual -ceq [string]$Expected }
'ExpandString' { return [string]$actual -ceq [string]$Expected }
'DWord' { return [uint32]$actual -eq [uint32]$Expected }
'QWord' { return [uint64]$actual -eq [uint64]$Expected }
'MultiString' {
$actualArray = @($actual)
$expectedArray = @($Expected)
if ($actualArray.Count -ne $expectedArray.Count) { return $false }
for ($index = 0; $index -lt $actualArray.Count; $index++) {
if ([string]$actualArray[$index] -cne [string]$expectedArray[$index]) { return $false }
}
return $true
}
'Binary' {
$actualArray = [byte[]]$actual
$expectedArray = [byte[]]$Expected
if ($actualArray.Length -ne $expectedArray.Length) { return $false }
for ($index = 0; $index -lt $actualArray.Length; $index++) {
if ($actualArray[$index] -ne $expectedArray[$index]) { return $false }
}
return $true
}
default { return [string]$actual -ceq [string]$Expected }
}
}
# Policy: Show Outlook Loop components for supported apps.
# Name: L_ShowOutlookLoopComponentsForSupportedApps
# Scope: User
# State: Enabled
# Source: outlk16.admx
$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail' -Name 'showoutlookloopcomponentsforsupportedapps' -Kind 'DWord' -Expected 1
if (-not $isMatch) {
$reasons.Add('Value mismatch: HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail\showoutlookloopcomponentsforsupportedapps') | Out-Null
}
if ($reasons.Count -eq 0) {
Write-Output 'Compliant'
exit 0
}
$reasons | ForEach-Object { Write-Output $_ }
exit 1
Remediation
$ErrorActionPreference = 'Stop'
function Set-RegistryValue {
param(
[Parameter(Mandatory = $true)][string] $Path,
[Parameter(Mandatory = $true)][string] $Name,
[Parameter(Mandatory = $true)][string] $PropertyType,
[Parameter(Mandatory = $true)][object] $Value
)
if (-not (Test-Path -LiteralPath $Path)) {
New-Item -Path $Path -Force | Out-Null
}
New-ItemProperty -LiteralPath $Path -Name $Name -PropertyType $PropertyType -Value $Value -Force | Out-Null
}
function Remove-RegistryValue {
param(
[Parameter(Mandatory = $true)][string] $Path,
[Parameter(Mandatory = $true)][string] $Name
)
if (Test-Path -LiteralPath $Path) {
Remove-ItemProperty -LiteralPath $Path -Name $Name -Force -ErrorAction SilentlyContinue
}
}
function Clear-RegistryKeyValues {
param(
[Parameter(Mandatory = $true)][string] $Path
)
if (-not (Test-Path -LiteralPath $Path)) {
return
}
foreach ($propertyName in (Get-Item -LiteralPath $Path).Property) {
Remove-ItemProperty -LiteralPath $Path -Name $propertyName -Force -ErrorAction SilentlyContinue
}
}
# Policy: Show Outlook Loop components for supported apps.
# Name: L_ShowOutlookLoopComponentsForSupportedApps
# Scope: User
# State: Enabled
# Source: outlk16.admx
Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail' -Name 'showoutlookloopcomponentsforsupportedapps' -PropertyType 'DWord' -Value 1
History 1 retained release
- 5568.100010 Aug 2026
- Already present in the first release ChangeIntel keeps.
Template
- Internal name
L_ShowOutlookLoopComponentsForSupportedApps- Namespace
outlk16.Office.Microsoft.Policies.Windows- Template file
outlk16.admx- Release
- Microsoft 365 Apps 5568.1000 · file set
8be05d876aae137d…
Definition, editor controls and support
Definition
<policy class="User" displayName="$(string.L_ShowOutlookLoopComponentsForSupportedApps)" explainText="$(string.L_ShowOutlookLoopComponentsForSupportedAppsExplain)" key="software\policies\microsoft\office\16.0\outlook\options\mail" name="L_ShowOutlookLoopComponentsForSupportedApps" valueName="showoutlookloopcomponentsforsupportedapps" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
<parentCategory ref="outlk16.Office.Microsoft.Policies.Windows:L_TrustCenter" />
<supportedOn ref="Microsoft.Policies.Windows:SUPPORTED_Windows7" />
<enabledValue>
<decimal value="1" />
</enabledValue>
<disabledValue>
<decimal value="0" />
</disabledValue>
</policy>Editor controls
Supported platforms and category
outlk16.Office.Microsoft.Policies.Windows:category:L_MicrosoftOfficeOutlook
<category displayName="$(string.L_MicrosoftOfficeOutlook)" name="L_MicrosoftOfficeOutlook" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
outlk16.Office.Microsoft.Policies.Windows:category:L_Security
<category displayName="$(string.L_Security)" name="L_Security" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
<parentCategory ref="outlk16.Office.Microsoft.Policies.Windows:L_MicrosoftOfficeOutlook" />
</category>
outlk16.Office.Microsoft.Policies.Windows:category:L_TrustCenter
<category displayName="$(string.L_TrustCenter)" name="L_TrustCenter" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
<parentCategory ref="outlk16.Office.Microsoft.Policies.Windows:L_Security" />
</category>
outlk16.Office.Microsoft.Policies.Windows:unresolved:Microsoft.Policies.Windows:SUPPORTED_Windows7
<unresolved reference="Microsoft.Policies.Windows:SUPPORTED_Windows7" />
outlk16.Office.Microsoft.Policies.Windows:category:L_MicrosoftOfficeOutlook
<category displayName="$(string.L_MicrosoftOfficeOutlook)" name="L_MicrosoftOfficeOutlook" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
<strings><string id="outlk16.Office.Microsoft.Policies.Windows:L_MicrosoftOfficeOutlook">Microsoft Outlook 2016</string></strings>
outlk16.Office.Microsoft.Policies.Windows:category:L_Security
<category displayName="$(string.L_Security)" name="L_Security" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
<parentCategory ref="outlk16.Office.Microsoft.Policies.Windows:L_MicrosoftOfficeOutlook" />
</category>
<strings><string id="outlk16.Office.Microsoft.Policies.Windows:L_Security">Security</string></strings>
outlk16.Office.Microsoft.Policies.Windows:category:L_TrustCenter
<category displayName="$(string.L_TrustCenter)" name="L_TrustCenter" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
<parentCategory ref="outlk16.Office.Microsoft.Policies.Windows:L_Security" />
</category>
<strings><string id="outlk16.Office.Microsoft.Policies.Windows:L_TrustCenter">Trust Center</string></strings>