If you want to send secured email in Outlook, you have to encrypt your email message before sending it. No one between you and your recipient can intercept your email message if you have encrypted it. Your system will scramble the contents of your email message while you send it. Encryption is just encoding your message from hackers who are trying to steal your data. You don't have to install a third-party application to encrypt or decode your email messages to send it securely. Both these features are included in the Outlook application itself. Encryption makes sure email messages are unreadable to anyone other than your recipient, which is mostly used for enhanced security in businesses. You can send a secured email in Outlook 2013 by following the steps that a given below.