Messages are sent to multiple addressees in an organization. Responses are correlated to the rank of the responding recipient in the organization, to assist the senders of messages to identify which responses to read. Receipt of the messages is acknowledged before the message can be fully read. Responses to the messages include a selection of a user status from a preset choice of statuses, and may include other response attributes required or offered by the sender of the message. The locations of responding and non-responding addressees of messages can be mapped.