Disable AutoDiscover

UserNeeds changes for IntuneL_OutlookDisableAutoDiscover

Supported on SUPPORTED_Windows7 (defined in the Windows templates)

5568.1000

What it does

This policy setting allows you to disable AutoDiscover. If you enable this policy setting, you can select one or more of the following options to disable in the AutoDiscover feature. "Exclude the last known good URL” – Outlook does not use the last known good Autodiscover URL. "Exclude the SCP object lookup" – Outlook does not perform Active Directory queries for Service Connection Point (SCP) objects with Autodiscover information. "Exclude the root domain query based on your primary SMTP address" - Outlook does not use the root domain of your primary SMTP address to locate the AutoDiscover service. For example, you select this optionOutlook does not use the following URL: https://<smtp-address-domain>/autodiscover/autodiscover.xml. "Exclude the query for the AutoDiscover domain" - Outlook does not use the Autodiscover domain to locate the Autodiscover service. For example, Outlook does not use the following URL: https://autodiscover.<smtp-address-domain>/autodiscover/autodiscover.xml "Exclude the HTTP redirect method" - Outlook does not use the HTTP redirect method in the event it is unable to reach the AutoDiscover service via either of the HTTPS URLs: https://<smtp-address-domain>/autodiscover/autodiscover.xml or https://autodiscover.<smtp-address-domain>/autodiscover/autodiscover.xml. "Exclude the SRV record query in DNS" - Outlook does not use an SRV record lookup in DNS to locate the AutoDiscover service.

What it writes

Hive: HKEY_CURRENT_USER
Registry key: software\policies\microsoft\office\16.0\outlook\autodiscover

Why it needs changes for Intune

Policy references a Windows supportedOn definition.
ADMX-INTUNE-WINDOWS-SUPPORTEDON-REFERENCE

Options

Option	Type	Registry value	Allowed values
Exclude the last known goode URL	Checkbox	`excludelastknowngoodurl`	On (1) or off (0)
Exclude the SCP object lookup	Checkbox	`excludescplookup`	On (1) or off (0)
Exclude the root domain query based on your primary SMTP address	Checkbox	`excludehttpsrootdomain`	On (1) or off (0)
Exclude the query for the AutoDiscover domain	Checkbox	`excludehttpsautodiscoverdomain`	On (1) or off (0)
Exclude the HTTP redirect method	Checkbox	`excludehttpredirect`	On (1) or off (0)
Exclude the SRV record query in DNS	Checkbox	`excludesrvrecord`	On (1) or off (0)
Exclude initial check to Office 365 Autodiscover URL	Checkbox	`excludeexplicito365endpoint`	On (1) or off (0)
Disable the Autodiscover V2 service	Checkbox	`disableautodiscoverv2service`	On (1) or off (0)

Configure and deploy

Choose a state and the option values; the output below is generated from the template for exactly that.

State Enabled Disabled Not configured

Options used when Enabled

Exclude the last known goode URL

Exclude the SCP object lookup

Exclude the root domain query based on your primary SMTP address

Exclude the query for the AutoDiscover domain

Exclude the HTTP redirect method

Exclude the SRV record query in DNS

Exclude initial check to Office 365 Autodiscover URL

Disable the Autodiscover V2 service

Enabled · User · template defaults

Registry file (.reg)

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover]
"disableautodiscoverv2service"=dword:00000001
"excludeexplicito365endpoint"=dword:00000001
"excludehttpredirect"=dword:00000001
"excludehttpsautodiscoverdomain"=dword:00000001
"excludehttpsrootdomain"=dword:00000001
"excludelastknowngoodurl"=dword:00000001
"excludescplookup"=dword:00000001
"excludesrvrecord"=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: Disable AutoDiscover
# Name: L_OutlookDisableAutoDiscover
# Scope: User
# State: Enabled
# Source: outlk16.admx

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludelastknowngoodurl' -PropertyType 'DWord' -Value 1

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludescplookup' -PropertyType 'DWord' -Value 1

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludehttpsrootdomain' -PropertyType 'DWord' -Value 1

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludehttpsautodiscoverdomain' -PropertyType 'DWord' -Value 1

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludehttpredirect' -PropertyType 'DWord' -Value 1

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludesrvrecord' -PropertyType 'DWord' -Value 1

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludeexplicito365endpoint' -PropertyType 'DWord' -Value 1

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'disableautodiscoverv2service' -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.
The generated payload is incomplete because one or more ADMX element values were not supplied: L_OutlookDisableAutoDiscoverLkgUrl, L_OutlookDisableAutoDiscoverScpLookup, L_OutlookDisableAutoDiscoverRootDomain, L_OutlookDisableAutoDiscoverAutoDiscoverSubDomain, L_OutlookDisableAutoDiscoverHttpRedirect, L_OutlookDisableAutoDiscoverSrvRecord, L_OutlookDisableAutoDiscoverExplicitO365Endpoint, L_OutlookDisableAutodiscoverV2Service

ADMX profile candidate (OMA-URI)

./User/Vendor/MSFT/Policy/Config/ADMX_outlk16/L_OutlookDisableAutoDiscover

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: Disable AutoDiscover
# Name: L_OutlookDisableAutoDiscover
# Scope: User
# State: Enabled
# Source: outlk16.admx

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludelastknowngoodurl' -Kind 'DWord' -Expected 1
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover\excludelastknowngoodurl') | Out-Null
}

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludescplookup' -Kind 'DWord' -Expected 1
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover\excludescplookup') | Out-Null
}

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludehttpsrootdomain' -Kind 'DWord' -Expected 1
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover\excludehttpsrootdomain') | Out-Null
}

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludehttpsautodiscoverdomain' -Kind 'DWord' -Expected 1
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover\excludehttpsautodiscoverdomain') | Out-Null
}

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludehttpredirect' -Kind 'DWord' -Expected 1
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover\excludehttpredirect') | Out-Null
}

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludesrvrecord' -Kind 'DWord' -Expected 1
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover\excludesrvrecord') | Out-Null
}

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludeexplicito365endpoint' -Kind 'DWord' -Expected 1
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover\excludeexplicito365endpoint') | Out-Null
}

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'disableautodiscoverv2service' -Kind 'DWord' -Expected 1
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover\disableautodiscoverv2service') | 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: Disable AutoDiscover
# Name: L_OutlookDisableAutoDiscover
# Scope: User
# State: Enabled
# Source: outlk16.admx

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludelastknowngoodurl' -PropertyType 'DWord' -Value 1

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludescplookup' -PropertyType 'DWord' -Value 1

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludehttpsrootdomain' -PropertyType 'DWord' -Value 1

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludehttpsautodiscoverdomain' -PropertyType 'DWord' -Value 1

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludehttpredirect' -PropertyType 'DWord' -Value 1

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludesrvrecord' -PropertyType 'DWord' -Value 1

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'excludeexplicito365endpoint' -PropertyType 'DWord' -Value 1

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\autodiscover' -Name 'disableautodiscoverv2service' -PropertyType 'DWord' -Value 1

History 1 retained release

5568.100010 Aug 2026
- Already present in the first release ChangeIntel keeps.

Template

Internal name: L_OutlookDisableAutoDiscover
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="$(string.L_OutlookDisableAutoDiscover)" explainText="$(string.L_OutlookDisableAutoDiscoverExplain)" key="software\policies\microsoft\office\16.0\outlook\autodiscover" name="L_OutlookDisableAutoDiscover" presentation="$(presentation.L_OutlookDisableAutoDiscover)" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="outlk16.Office.Microsoft.Policies.Windows:L_Exchangesettings" />
      <supportedOn ref="Microsoft.Policies.Windows:SUPPORTED_Windows7" />
      <elements>
        <boolean id="L_OutlookDisableAutoDiscoverLkgUrl" valueName="excludelastknowngoodurl">
          <trueValue>
            <decimal value="1" />
          </trueValue>
          <falseValue>
            <decimal value="0" />
          </falseValue>
        </boolean>
        <boolean id="L_OutlookDisableAutoDiscoverScpLookup" valueName="excludescplookup">
          <trueValue>
            <decimal value="1" />
          </trueValue>
          <falseValue>
            <decimal value="0" />
          </falseValue>
        </boolean>
        <boolean id="L_OutlookDisableAutoDiscoverRootDomain" valueName="excludehttpsrootdomain">
          <trueValue>
            <decimal value="1" />
          </trueValue>
          <falseValue>
            <decimal value="0" />
          </falseValue>
        </boolean>
        <boolean id="L_OutlookDisableAutoDiscoverAutoDiscoverSubDomain" valueName="excludehttpsautodiscoverdomain">
          <trueValue>
            <decimal value="1" />
          </trueValue>
          <falseValue>
            <decimal value="0" />
          </falseValue>
        </boolean>
        <boolean id="L_OutlookDisableAutoDiscoverHttpRedirect" valueName="excludehttpredirect">
          <trueValue>
            <decimal value="1" />
          </trueValue>
          <falseValue>
            <decimal value="0" />
          </falseValue>
        </boolean>
        <boolean id="L_OutlookDisableAutoDiscoverSrvRecord" valueName="excludesrvrecord">
          <trueValue>
            <decimal value="1" />
          </trueValue>
          <falseValue>
            <decimal value="0" />
          </falseValue>
        </boolean>
        <boolean id="L_OutlookDisableAutoDiscoverExplicitO365Endpoint" valueName="excludeexplicito365endpoint">
          <trueValue>
            <decimal value="1" />
          </trueValue>
          <falseValue>
            <decimal value="0" />
          </falseValue>
        </boolean>
        <boolean id="L_OutlookDisableAutodiscoverV2Service" valueName="disableautodiscoverv2service">
          <trueValue>
            <decimal value="1" />
          </trueValue>
          <falseValue>
            <decimal value="0" />
          </falseValue>
        </boolean>
      </elements>
    </policy>

Editor controls

<presentation id="L_OutlookDisableAutoDiscover" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <checkBox refId="L_OutlookDisableAutoDiscoverLkgUrl">Exclude the last known goode URL</checkBox>
        <checkBox refId="L_OutlookDisableAutoDiscoverScpLookup">Exclude the SCP object lookup</checkBox>
        <checkBox refId="L_OutlookDisableAutoDiscoverRootDomain">Exclude the root domain query based on your primary SMTP address</checkBox>
        <checkBox refId="L_OutlookDisableAutoDiscoverAutoDiscoverSubDomain">Exclude the query for the AutoDiscover domain</checkBox>
        <checkBox refId="L_OutlookDisableAutoDiscoverHttpRedirect">Exclude the HTTP redirect method</checkBox>
        <checkBox refId="L_OutlookDisableAutoDiscoverSrvRecord">Exclude the SRV record query in DNS</checkBox>
        <checkBox refId="L_OutlookDisableAutoDiscoverExplicitO365Endpoint">Exclude initial check to Office 365 Autodiscover URL</checkBox>
        <checkBox refId="L_OutlookDisableAutodiscoverV2Service">Disable the Autodiscover V2 service</checkBox>
      </presentation>

Supported platforms and category

outlk16.Office.Microsoft.Policies.Windows:category:L_Exchangesettings
<category displayName="$(string.L_Exchangesettings)" name="L_Exchangesettings" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="outlk16.Office.Microsoft.Policies.Windows:L_ToolsAccounts" />
    </category>
outlk16.Office.Microsoft.Policies.Windows:category:L_MicrosoftOfficeOutlook
<category displayName="$(string.L_MicrosoftOfficeOutlook)" name="L_MicrosoftOfficeOutlook" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
outlk16.Office.Microsoft.Policies.Windows:category:L_ToolsAccounts
<category displayName="$(string.L_ToolsAccounts)" name="L_ToolsAccounts" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="outlk16.Office.Microsoft.Policies.Windows:L_MicrosoftOfficeOutlook" />
    </category>
outlk16.Office.Microsoft.Policies.Windows:unresolved:Microsoft.Policies.Windows:SUPPORTED_Windows7
<unresolved reference="Microsoft.Policies.Windows:SUPPORTED_Windows7" />
outlk16.Office.Microsoft.Policies.Windows:category:L_Exchangesettings
<category displayName="$(string.L_Exchangesettings)" name="L_Exchangesettings" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="outlk16.Office.Microsoft.Policies.Windows:L_ToolsAccounts" />
    </category>
<strings><string id="outlk16.Office.Microsoft.Policies.Windows:L_Exchangesettings">Exchange</string></strings>
outlk16.Office.Microsoft.Policies.Windows:category:L_MicrosoftOfficeOutlook
<category displayName="$(string.L_MicrosoftOfficeOutlook)" name="L_MicrosoftOfficeOutlook" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
<strings><string id="outlk16.Office.Microsoft.Policies.Windows:L_MicrosoftOfficeOutlook">Microsoft Outlook 2016</string></strings>
outlk16.Office.Microsoft.Policies.Windows:category:L_ToolsAccounts
<category displayName="$(string.L_ToolsAccounts)" name="L_ToolsAccounts" 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_ToolsAccounts">Account Settings</string></strings>