How to turn off e mail matching for certificates in outlook
To turn off email matching for certificates in Outlook, you can follow these steps:
Method 1: Disable Email Matching for Certificates through Outlook Options
- Open Outlook and go to the "File" menu.
- Click on "Options" (or "Office Account" in Outlook 2019 and later).
- In the Outlook Options window, click on "Trust Center" in the left-hand menu.
- Click on "Trust Center Settings" at the bottom of the window.
- In the Trust Center Settings window, click on the "Certificates" tab.
- Uncheck the box next to "Email matching for certificates" under the "Certificate validation" section.
- Click "OK" to close the Trust Center Settings window.
- Click "OK" again to close the Outlook Options window.
Method 2: Disable Email Matching for Certificates through Registry Editor (for advanced users)
- Open the Registry Editor (Regedit.exe) on your computer.
- Navigate to the following registry key:
HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Trust Center
- Create a new DWORD value named
DisableEmailMatchingForCertificates
and set its value to1
. - Close the Registry Editor.
Method 3: Disable Email Matching for Certificates through Group Policy (for enterprise environments)
- Open the Group Policy Editor (GPEdit.msc) on your computer.
- Navigate to the following policy setting:
Computer Configuration\Administrative Templates\Microsoft Office 2016\Outlook\Trust Center
- Enable the policy setting "Disable email matching for certificates" and set its value to
Enabled
. - Close the Group Policy Editor.
After disabling email matching for certificates, Outlook will no longer check the email address in a certificate against the sender's email address when validating the certificate.