Inter-enterprise messaging system using bridgehead servers

摘要: Systems and methods for transmitting messages, such as real-time from an entity outside a firewall to recipient inside the firewall. The messages include address of bridgehead server exposed through information identifying client. network protected by can one or more servers, messaging servers associated with each server, clients assigned server. When receives message, it resolves which client is assigned. message forwarded and, in turn, sender does not need know identity Moreover, sender, who may reside firewall, direct access order establish communication users Thus, systems are compatible conventional security measures employed many organizations. be used monitor online status other receive notification properties clients.