1. A network apparatus comprising: a processor; and a memory; wherein the network apparatus is to: perform decryption of a message, the message comprising one or more headers and a message body; send the decrypted message to a first message director of the network apparatus; select an application server from a plurality of application servers based on application data within the message body of the decrypted message; direct the decrypted message towards the selected application server; send a second message to a second message director of the network apparatus when a spillover feature of the first message director is enabled and a loading criteria is met; and select a second application server from the plurality of application servers based on application data within a message body of the second message, the second message to be decrypted by the network apparatus.