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| Number | Title | Issue Date |
| 8176162 | Email server system and method An email system comprises a plurality of email servers connected by a data communications network. The email system avoids single points of failure by employing multiple email servers which self configure, without requiring dedicated servers, through self addressing... | 05/08/2012 |
| 8150002 | Method and apparatus for controlling unsolicited messaging in real time messaging networks A Voice over IP (VoIP) or Real Time Messaging (RTM) firewall device is claimed that protects VoIP or RTM network traffic by identifying and controlling the delivery of such network traffic that is unsolicited and undesired by the recipient (i.e. VoIP or RTM spam). T... | 04/03/2012 |
| 7970844 | Replicating message queues between clustered email gateway systems A method of “stateful failover” is provided that allows email gateway systems in a cluster to deliver email messages that have been accepted for delivery by a member of the cluster, but has failed with out delivering the messages. The method involves creating a ... | 06/28/2011 |
| 7882558 | Tunnel designation system for virtual private networks A system and method are provided to couple tunnel servers to tunnel clients executing host applications for use in a virtual private network (VPN) environment. A receiver receives requests from host applications executing on the tunnel clients. The requests are addr... | 02/01/2011 |
| 7882187 | Method and system for detecting undesired email containing image-based messages A system and method of detecting undesired email containing image-based messages employs a statistical analysis process which identifies and assigns probability values to the presence of each of a pre-selected set of text-related characteristics of an email under co... | 02/01/2011 |
| 7773604 | System directing flow of packets by-passing policy-based application for processing by policy engine according to action specification in policy cache A hardware-based policy engine that employs a policy cache to process packets of network traffic. The policy engine includes a stream classifier that associates each packet with at least one action processor based on data in the packet, and the action processor furt... | 08/10/2010 |
| 7627641 | Method and system for recognizing desired email A system and method for recognizing an incoming email as a desired email examines outgoing email messages to arrange the email into fragments for which representations are created and stored. When an incoming message is received, the message is arranged into fragmen... | 12/01/2009 |
| 7617305 | Email server system and method An email system comprises a plurality of email servers connected by a data communications network. The email system avoids single points of failure by employing multiple email servers which self configure, without requiring dedicated servers, through self addressing... | 11/10/2009 |
| 7613923 | Method and apparatus for controlling unsolicited messaging in real time messaging networks A Voice over IP (VoIP) or Real Time Messaging (RTM) firewall device is claimed that protects VoIP or RTM network traffic by identifying and controlling the delivery of such network traffic that is unsolicited and undesired by the recipient (i.e. VoIP or RTM spam). T... | 11/03/2009 |
| 7613172 | Method and apparatus for controlling unsolicited messaging Sensor nodes (or addresses therefore), acting as real-time message decoys, are distributed across a real-time communications network to attract unsolicited real-time messages. Filtering rules are derived from the message characteristics (such as the source address) ... | 11/03/2009 |
| 7420976 | System directing flow of packets by-passing policy-based application for processing by policy engine according to action specification in policy cache A hardware-based policy engine that employs a policy cache to process packets of network traffic. The policy engine includes a stream classifier that associates each packet with at least one action processor based on data in the packet, and the action processor furt... | 09/02/2008 |
| 7237263 | Remote management of properties, such as properties for establishing a virtual private network A facility in a single manager computer system for managing properties for a plurality of managed computer systems is described. The facility reiteratively receives new managed properties for an identified managed computer system. In response, the facility delivers ... | 06/26/2007 |
| 6751668 | Denial-of-service attack blocking with selective passing and flexible monitoring A method and apparatus for responding to denial of service attacks. Rather than a firewall or other device either denying all new session requests or denying no new session requests (and, albeit, dropping then-pending session requests), new session requests are sele... | 06/15/2004 |
| 6732199 | Software programmable calendar queue cache A system and method for scheduling packet output according to a quality of service (QoS) action specification. A system is provided with a calendar queue with a plurality of bandwidth timeslots, wherein the bandwidth timeslots are organized into groups. A look-up lo... | 05/04/2004 |
| 6625150 | Policy engine architecture A policy engine for handling incoming data packets. The policy engine includes a stream classification module, a data packet input/output module, and a policy enforcement module. The policy enforcement module further includes a packet scheduler, an on-chi... | 09/23/2003 |
| 6493752 | Device and method for graphically displaying data movement in a secured network Embodiments of the invention provide a display screen for a network security device. The screen includes representations of a source and a destination having respective source and destination indicators, such as LEDs. The source indicator is operable to i... | 12/10/2002 |
