A computer system including program instructions to receive a message at a source gateway of the local network, the message includes message data corresponding to a plurality of message elements, assign a unique group ID based on the type of message received at the source gateway, extract a message format from the received message, the message format defines how the message data is organized with respect to the message elements, and associate the extracted message format with the unique group ID. The computer system further including program instructions to store locally, the extracted message format together with the associated unique group ID, establish a dedicated connection between the source gateway and a target gateway of the remote network based on the unique group ID, encode the message based on the extracted message format, and send the encoded message from the source gateway to the target gateway across the dedicated connection.