Abstract: A system for load distribution using a mail proxy, which includes a client, a public network, and an Internet service provider (ISP) network, and a plurality of e-mail servers. The Internet service provider (ISP) network includes a virtual private network (VPN) device, which is configured to prevent unauthorized access to a private network. The VPN device also includes a mail proxy and an authentication and authorization module or service capable of at least the following: validating credentials of the client, and identifying at least one outgoing e-mail server and at least one incoming e-mail server for each client. The plurality of e-mail servers include a plurality of outgoing e-mail servers and a plurality of incoming e-mail servers.