In the linear and interactive models, people for whom a message is intended are receivers.
Explanation:
In an interactive model, communication is often two-way and renders encoding and decoding from both sides.
The receiver receives the message and decodes it to understand it. Once he understands it completely, he encodes a message of his own and uses it to reply to the message that he had received.
In a linear model, the receiver is not obliged or required to reply to the sender.