What term should be used to indicate a message is to be relayed to someone?

The term "relay" is the most appropriate choice to indicate that a message is to be passed on to someone else. In communication contexts, relaying conveys the act of receiving information from one source and then delivering it to another. It emphasizes the responsibility of the intermediary to ensure that the message is delivered accurately and comprehensively.

In contrast, "repeat" primarily focuses on the act of saying something again, often without emphasis on sending it to a different recipient. "Receiving poorly" refers to how information is initially taken in, which does not encapsulate the act of passing along messages. "Transmitting too rapidly" suggests a concern about speed and potential misunderstanding, rather than the essential act of conveying information to another party. Thus, "relay" captures the intended action of communication most effectively.