Turning Off Digital Signatures in Outlook

As a feature-rich desktop email client, Microsoft Outlook has the option to manage digital signatures. Unlike a regular message signature, a digital signature is a security feature and is therefore managed through the Microsoft Outlook Trust Center -- which controls privacy and security settings for Outlook. Disabling a digital signature through the Trust Center will automatically disable the signature on all outgoing messages. However, you can also turn off the signature for a single message through the Options tab on a new Message window.

Open the "File" menu, then select "Options" to launch the Outlook Options dialog window.

Select "Trust Center," then "Trust Center Settings" in the Microsoft Outlook Trust Center section.

Select "Email Security," then clear the "Add Digital Signature to Outgoing Messages" check box in the Encrypted Email section.

Click "OK," then "OK" again to save your changes.

Open a new Message window, then select the "Options" tab.

Select the "Options Dialog Box Launcher" icon (resembling an arrow exiting a box) in the More Options group.

Click "Security Settings" in the Security section, then clear the "Add Digital Signature to This Message" check box. Click the "OK" button to save the change.

Click the "Close" button to close the Message Options window.