What should not be indicated on the outer envelope when sending classified information?

When sending classified information, the outer envelope should not indicate the individual's name primarily for security reasons. Including personal identifiers, such as the name of a specific individual, could potentially expose sensitive information to unauthorized parties. The priority is to maintain the security and anonymity of individuals involved in the handling of classified materials, as this could help protect them from any potential targeting or risks associated with the information contained within the envelope.

In contrast, it is standard practice to include other information on the envelope. For instance, the highest level of classification is typically shown to alert handlers to the sensitivity of the content, and the type of document enclosed may be designated for tracking purposes within secure channels. The sender's return address is also commonly included in case the envelope needs to be returned or if there are issues with delivery, as it ensures that classified materials can be returned to a secure location if necessary. Thus, the emphasis on not indicating personal names prioritizes individuals’ safety and operational security within the context of handling classified information.