Email security classifications for Outlook provides an easy to use method for users to select a security classification for outbound messages. This easily deployable solution for classifying emails in corporate, government and military environments ensures that confidential information doesn't get leaked, while ensuring minimum user response. You can use Email Security Labels for Outlook, in combination with gateway security software, to ensure that confidential emails are not permitted to leave the network without encryption. This product was designed to comply with Defence Signal Directorate's (Australia) rules about email protective marking, and can be integrated with gateway products such as NetIQ's MailMarshal.
This software is a commercial software. You will be able to download and test Email Security Labels for Outlook during a certain period of time, then, if it does what you need, you will have to acquire the full version from Email Security Labels for Outlook publisher. The Email Security Labels for Outlook 1.0 free trial version contains an installer and an uninstaller, and has a size of 1562 Kilobytes.
For additional information and support request, please contact directly Email Security Labels for Outlook publisher.

Email Security Labels for Outlook Screenshot