Divulging contents of messages-Any person connected with a telegraph, telephone or messenger company, incorporated or unincorporated, operating a line of telegraph or telephone, or engaged in the business of receiving and delivering messages in this state, in any capacity, who wilfully divulges the contents or the nature of the contents of a communication entrusted to him for transmission or delivery, or who wilfully refuses or neglects to transmit or deliver the same, or who wilfully delays the