A computer system comprising: a processing unit; and a memory storing computer executable instructions that, when executed by the processing unit, cause the system to: replicate a plurality of per-user databases (208, 210, 212, 214) for a plurality of users across a plurality of database servers linked across a network, wherein each of the plurality of the per-user databases (208, 210, 212, 214) contain an electronic identity and an electronic mailbox of a single user of the plurality of users; upload and activate the plurality of per-user databases (208, 210, 212, 214) onto a server; when the server does not have a connection to the network, provide a client device of a first single user with an electronic identity of the first single user and an electronic mailbox of the first single user from a per-user database of the first single user from the server; and when the server has a connection to the network: synchronize the per-user database of the first single user from the server across the network to the plurality of network-linked database servers; and provide the client device of the first single user with the electronic identity of the first single user and the electronic mailbox of the first single user from a per-user database of the first single user from one of the plurality of database servers. a processing unit; and a memory storing computer executable instructions that, when executed by the processing unit, cause the system to: replicate a plurality of per-user databases (208, 210, 212, 214) for a plurality of users across a plurality of database servers linked across a network, wherein each of the plurality of the per-user databases (208, 210, 212, 214) contain an electronic identity and an electronic mailbox of a single user of the plurality of users; upload and activate the plurality of per-user databases (208, 210, 212, 214) onto a server; when the server does not have a connection to the network, provide a client device of a first single user with an electronic identity of the first single user and an electronic mailbox of the first single user from a per-user database of the first single user from the server; and when the server has a connection to the network: synchronize the per-user database of the first single user from the server across the network to the plurality of network-linked database servers; and provide the client device of the first single user with the electronic identity of the first single user and the electronic mailbox of the first single user from a per-user database of the first single user from one of the plurality of database servers. replicate a plurality of per-user databases (208, 210, 212, 214) for a plurality of users across a plurality of database servers linked across a network, wherein each of the plurality of the per-user databases (208, 210, 212, 214) contain an electronic identity and an electronic mailbox of a single user of the plurality of users; upload and activate the plurality of per-user databases (208, 210, 212, 214) onto a server; when the server does not have a connection to the network, provide a client device of a first single user with an electronic identity of the first single user and an electronic mailbox of the first single user from a per-user database of the first single user from the server; and when the server has a connection to the network: synchronize the per-user database of the first single user from the server across the network to the plurality of network-linked database servers; and provide the client device of the first single user with the electronic identity of the first single user and the electronic mailbox of the first single user from a per-user database of the first single user from one of the plurality of database servers. synchronize the per-user database of the first single user from the server across the network to the plurality of network-linked database servers; and provide the client device of the first single user with the electronic identity of the first single user and the electronic mailbox of the first single user from a per-user database of the first single user from one of the plurality of database servers.