---
title: "Disable the signature in Outlook (Web and Desktop)"
description: "Disable the signature tab of your users in Outlook."
url: https://support.signitic.com/en/articles/9561082-disable-the-signature-in-outlook-web-and-desktop
collection: "Use the Outlook Add-in"
updated: 2026-10-09
language: en
alternates: [fr, it, de, pt]
---

# Disable the signature in Outlook (Web and Desktop)

Disable the signature tab of your users in Outlook.

In certain situations, you may wish to **disable the ability for users to modify or add a signature in Outlook**, particularly if you manage signatures via Signitic. Here is how to proceed for **Outlook Web App (OWA)** and **Outlook Desktop**.

## **❶** Disable the signature in Outlook Web App (OWA)

### Via the Exchange Admin Center (EAC)

You can disable the signature feature from the Exchange dashboard:

1.  Open the **Exchange Admin Center (EAC)**.
    
2.  Go to **Roles > Owa web app policies**.
    
3.  Open each relevant policy.
    
4.  Click on **Manage Features**.
    
5.  Under the **User Experience** section, **uncheck "Email signature"**.
    
6.  Save the changes.
    

### Via Exchange PowerShell

You can also apply the policy via PowerShell:

```javascript
Set-OwaMailboxPolicy -Identity "NomDeLaPolitique" -SignaturesEnabled $false
```

## **❷** Disable the signature in Outlook Desktop

To disable signatures in Outlook Desktop, you must **modify the Windows registry** or use the **Local Group Policy Editor**.

### Method via the Registry Editor:

1.  Open **Regedit**.
    
2.  Navigate to:
    
    ```javascript
    HKEY_CURRENT_USER\Software\Microsoft\Office\<version>\Outlook\Options\Mail
    ```
    
3.  Create a new **DWORD value** called `disablesignatures`.
    
4.  Set its **value to 1**.
    

🛑 This will remove the option to create/modify signatures in Outlook Desktop.

If necessary, this link can also assist you on this topic [POstponeroamingSignature](https://learn.microsoft.com/en-us/powershell/module/exchangepowershell/set-organizationconfig?view=exchange-ps#-postponeroamingsignaturesuntillater)