How to prevent users from adding signatures in Outlook

How to prevent users from adding signatures in Outlook, you can do that by enabling a setting in the Registry Editor or Local Group Policy Editor. Once you turn this setting on, Outlook will no longer display the option to add a signature. There are two options if you want to stop your signature from appearing on emails sent on behalf of your company. First, you can remove the signature manually. Second, you can use this method to get the job done. These guides below are fruitful when you have multiple customized signatures, and you do not want to remove them.

How to prevent users from adding signature in Outlook

To prevent users from adding signatures in Outlook using the Registry, follow these steps:

Press Win+R to display the Run prompt.
Type regedit and hit the Enter button.
Click the Yes button.
Navigate to office in HKCU.
Right-click on office > New > Keyand name it as 0.
Repeat these steps to create another sub-key named common.
Right-click on common > New > Keyand name it as mailsettigns.
Right-click on mailsettings > New > DWORD (32-bit) Value.
Set the name as disablesignatures.
Double-click on it to set the Value data as 1.
Click the OK button and restart your computer.

To begin, press Win+R to open the Run prompt, then type regedit into the prompt and press Enter. Doing so will open Registry Editor on your PC. From here, you can make changes to your registry as needed.

Then, navigate to the following path:

HKEY_CURRENT_USER\Software\Policies\Microsoft\office

Create a new key called “16.0” under the “office” key, then create a new key called “common” under the “16.0” key.

After you create a sub-key under the common key, right-click on it and name it as mailsettings. To disable signatures, create a REG_DWORD value named “disablesignatures”.

To set the Value data for REG_DWORD to 1, double-click on the REG_DWORD value. To change your computer’s settings, click the OK button and restart your computer.

In order to allow Outlook to add signatures to e-mail messages, you have two options. You can either set the Value data to 0, or delete the REG_DWORD value. If you want to delete the REG_DWORD value, simply right-click on it, select the Delete option, and click on the Yes button. You can use the Local Group Policy Editor to do this, but you need to install the administrative template for Office first.

How to stop users from adding signatures in Outlook using Group Policy

To prevent users from adding signatures in Outlook using Group Policy, follow these steps:

To find gpedit.msc, type it into the search box in the taskbar.
Click on the search result.
User Configuration > Mail Format
Open the ‘Do not allow signatures for e-mail messages’ setting.
Choose the Enabled option.
Click the OK button.

First, you need to open the Local Group Policy Editor on your computer. For that, search for gpedit.msc and click on the individual search result.

Then, navigate to the following path:

User Configuration > Administrative Templates > Microsoft Outlook 2016 > Outlook Options > Mail Format

To disable signatures in email messages, double-click on the “Do not allow signatures for e-mail messages” setting and choose the “Enabled” option.

Save the change by clicking the OK button. You don’t need to restart your computer, but if Outlook was open when you made the change, you’ll need to restart the Outlook app.

In order to revert this change, you will need to go to the Mail Format section, double-click on the “Do not allow signatures for e-mail messages” setting, and choose the “Not Configured” option. Choosing the “Disabled” option is also possible, but it is recommended to choose “Not Configured” in order to maintain the default setting.

How do I disable the end user’s ability to add, edit and remove Outlook signatures?

The end user’s ability to add, edit, and remove Outlook signatures can be disabled by creating a REG_DWORD value named NewSignature here: HKEY_CURRENT_USER\Software\Policies\Microsoft\office\16.0\common\mailsettings. Then, double-clicking on it to set the Value data as 1. Next, creating another REG_DWORD value named ReplySignature and setting the Value data as 1.

How do I turn off my signature in Office 365?

To turn off your signature in Office 365 or Outlook 365, follow the guides above. In the Local Group Policy Editor, open the Do not allow signatures for e-mail messages setting. Then, choose the Enabled option and click the OK button.