Patent ID: 7647380

Claim:
A method for routing mail in an enterprise email system, comprising: providing a plurality of storage locations on a plurality of storage units, each storage unit having at least a subset of the plurality of storage locations, at least one of the plurality being associated with a user of the enterprise email system, each storage location including a storage address, each user having at least one unique storage location associated with the user; receiving an email at an inbound mail transfer agent and retrieving a unique user token from a user location database, the user token identifying the storage location for a user from the user location database within the enterprise email system, the user token comprising at least an Internet Protocol (IP) address and disk address, the inbound mail transfer agent including a transformation engine converting the user token to a domain including a transposition of the IP address and disk address; retrieving an MX record for a user based on the domain created from the user token via an internal DNS server within the enterprise email system, the MX record identifying a routing to the storage location for the user within the system; and routing mail within the enterprise email system to the storage location using the information contained in the MX record using at least one internal mail transfer agent.