What do I do about e-mail messages that contain sensitive information such as classified proprietary or Privacy Act information?
If you receive e-mail containing sensitive information, apply the same standards and precautions to the e-mail containing sensitive information as you would to the same information in any other medium. However, you should not use the e-mail system to transmit messages that contain confidential business information, information covered by the Privacy Act, or other sensitive information. At the time of this writing, e-mail systems are not considered as secure or private as the U.S. Postal Service, and don’t have the same legal protections.
