System and method for load distribution using a mail box proxy of a virtual private network

A virtual private network device having enhanced load distribution using a mail proxy, the device comprising:

• a cryptographic protocol, which provides a secure connection between the virtual private network device and a remote user on a public network;
• a mail proxy adapted to receive and distribute SSL and clear-text e-mails between a remote user and an e-mail server, the e-mail server comprising a plurality of outgoing e-mail servers and a plurality of incoming e-mail servers, and wherein the mail proxy assigns the remote user to one or more outgoing e-mail servers and one or more incoming e-mail servers, and distributes the e-mail requests of the remote user to the one or more outgoing e-mail servers and one or more incoming e-mail servers using a load distribution method, which distributes the e-mail requests of the remote user across several of the one or more outgoing servers and several of the one or more incoming e-mail servers;
• and
• an authentication, authorization and accounting server, the authentication, authorization and accounting server having a database, which includes:
• authentication and authorization credentials;
• and
• information regarding the outgoing e-mail servers and the incoming mail servers for the remote user.

A method of load distribution for a virtual private network device, the method comprising performing the following steps within the virtual private network device:

• establishing a secure connection between the virtual private network device and a remote user;
• assigning the remote user to one or more outgoing e-mail servers and one or more incoming e-mail servers from a plurality of outgoing e-mail servers and a plurality of incoming e-mail servers;
• receiving an encrypted e-mail request from the remote user having a set of credentials;
• directing the set of credentials of the remote user to an authentication and authorization module within the mail proxy, wherein the authentication and authorization module:
• validates the set of credentials of the remote user;
• and
• provides an IP address and Port of at least one outgoing e-mail server and at least one incoming e-mail server for the remote user based on a database stored within an authentication and authorization server;
• decrypting an outgoing e-mail sent by the remote user and sending the e-mail via an outgoing e-mail server;
• and
• receiving incoming e-mails from an incoming mail server and delivering the e-mail to the remote user over an encrypted channel.

A method of load distribution using a mail proxy of a virtual private network (VPN) device comprising:

• establishing a secure connection between the virtual private network device and at least one remote user;
• assigning the at least one remote user to one or more of the IMAP servers and one or more of the SMTP servers from a plurality of IMAP servers and a plurality of SMTP servers;
• inputting into an authentication and authorization database an IP address and Port for IMAP and SMTP access for the at least one remote user;
• and
• directing e-mail request to at least one of a plurality of IMAP and SMTP servers based on the authentication and authorization database to at least one of a plurality of IMAP and SMTP servers, wherein the database provides the IP address and Port for the IMAP server and the SMTP server, and which are provisioned to the at least one remote user.