An apparatus is provided for transferring data among clients, recipients, and servers. In general, an apparatus is described for coordinating and modifying data being transferred from clients to destination servers and from destination servers to recipients. A proxy server modifies requests and responses from clients and destination servers, respectively, and ultimately communicates related responses to recipients according to one or more predefined rules pertaining to each client and destination server. In this way, requests may be communicated from clients to the appropriate destination servers such that the requests may be fulfilled by the destination servers, and responses may be communicated from the destination servers to the appropriate recipients. The load on potential destination servers, network conditions, and the content of the responses received may be considered and addressed by the proxy server, facilitating the transfer of data.