What is a kickback or 3-way mail in the context of correctional facilities?

In the context of correctional facilities, a kickback or 3-way mail refers to a form of correspondence that is intended to circumvent the regulations and controls in place for inmate communication. This type of mail is typically characterized by its insufficient postage, which means that it may not be properly titled for delivery.

In a correctional setting, when mail is sent without the correct postage, it may eventually be returned to the sender or misdirected, creating complexities that can conceal the true purpose of the communication. This method is often utilized by individuals trying to communicate covertly with inmates or smuggle information, as it may not be immediately recognizable as being intended for an inmate.

The other options describe different postal situations or processes that do not accurately capture the distinct nature of kickback/3-way mail. For instance, requiring a signature upon delivery is a standard practice for important correspondence and doesn't relate to the illicit intent of communication in a correctional context. Misdirected mail and mail sent to multiple addresses, while they may share some surface similarities with the kickback concept, do not reflect the specific methodology or intention behind utilizing insufficient postage to bypass detection and scrutiny.