Message encoding includes selecting and organizing a message. Messade decoding includes interpreting a message. Sender is the person who sends the message (the e-mail). Channel is the way in which the sender and the receiver of the message communicate (note, conversation, e-mail). In our case it is e-mail.
Sending a busy manager a long email represents a problem in the message decoder as an area of the communication process, because the manager is too busy and may be not able to read the message.
