Abstract: Methods and systems for implementing a link layer path latency protocol (LLPLP) to monitor per-hop path latency are provided. According to one embodiment, a LLPLP message of a first type, including multiple hop records corresponding to multiple hops in a unique set of hops derived from all possible paths between a start node and an end node within the private network, is sent to a source node specified by a first hop record of the multiple hop records. Receipt of the LLPLP message by a source node specified in one or more hop records causes the source node to send one or more LLPLP messages of the first type to corresponding destination nodes. Receipt of the LLPLP message by a destination node specified in one or more hop records causes the destination node to calculate and return latency measurements for the appropriate hops via LLPLP messages of a second type.

Abstract: In a computer network system based on an open system interconnection model, where the computer network system includes at least a network layer (Layer 3) and an application layer (Layer 7), a system and a method for managing electronic message traffic into and out of the computer network system including defining a communication channel between Layer 3 and Layer 7 for exchanging data directly therebetween for use in enhancing flow of the electronic message traffic.

Abstract: A multi-user e-mail messaging system is described that is interfaced through the Internet and includes a first user group sharing a first server, which first server is interfaced to the Internet. In this system, after an e-mail message has been originated by an originating user of the first user group, the e-mail message is directed onto an e-mail enhancement path, and additional content is added to the e-mail message using the e-mail enhancement path to produce an enhanced e-mail message. Thereafter, the enhanced e-mail message from the e-mail enhancement path to the intended recipient. In one feature, the path taken by an incoming e-mail message is different from an outgoing path taken by an e-mail message sent from the first user group. The outgoing path defined to the intended recipient includes the enhancement path.

Abstract: A multi-user e-mail messaging system is described that is interfaced through the Internet and includes a first user group sharing a first server, which first server is interfaced to the Internet. In this system, after an e-mail message has been originated by an originating user of the first user group, the e-mail message is directed onto an e-mail enhancement path, and additional content is added to the e-mail message using the e-mail enhancement path to produce an enhanced e-mail message. Thereafter, the enhanced e-mail message from the e-mail enhancement path to the intended recipient. In one feature, the path taken by an incoming e-mail message is different from an outgoing path taken by an e-mail message sent from the first user group. The outgoing path defined to the intended recipient includes the enhancement path.

Abstract: A multi-user e-mail messaging system is described that is interfaced through the Internet and includes a first user group sharing a first server, which first server is interfaced to the Internet. In this system, after an e-mail message has been originated by an originating user of the first user group, the e-mail message is directed onto an e-mail enhancement path, and additional content is added to the e-mail message using the e-mail enhancement path to produce an enhanced e-mail message. Thereafter, the enhanced e-mail message from the e-mail enhancement path to the intended recipient. In one feature, the path taken by an incoming e-mail message is different from an outgoing path taken by an e-mail message sent from the first user group. The outgoing path defined to the intended recipient includes the enhancement path.

Abstract: In a messaging system interfaced through the Internet, a method for processing a message from a sender and intended for delivery to at least one recipient, which sender is interfaced to the Internet through a sender server and which recipient is interfaced to the Internet through a recipient server, where the message includes at least recipient information and message body, is disclosed. The method includes testing the recipient information by establishing a temporary test connection through the Internet from the sender server to the recipient server, before relying on the recipient information for sending the message, so as to provide an indication of deliverability of the message to the recipient without using an SMTP VRFY command.

Abstract: A multi-user e-mail messaging system is described that is interfaced through the Internet and includes a first user group sharing a first server, which first server is interfaced to the Internet. In this system, after an e-mail message has been originated by an originating user of the first user group, the e-mail message is directed onto an e-mail enhancement path, and additional content is added to the e-mail message using the e-mail enhancement path to produce an enhanced e-mail message. Thereafter, the enhanced e-mail message from the e-mail enhancement path to the intended recipient. In one feature, the path taken by an incoming e-mail message is different from an outgoing path taken by an e-mail message sent from the first user group. The outgoing path defined to the intended recipient includes the enhancement path.

Abstract: A multi-user e-mail messaging system is described that is interfaced through the Internet and includes a first user group sharing a first server, which first server is interfaced to the Internet. In this system, after an e-mail message has been originated by an originating user of the first user group, the e-mail message is directed onto an e-mail enhancement path, and additional content is added to the e-mail message using the e-mail enhancement path to produce an enhanced e-mail message. Thereafter, the enhanced e-mail message from the e-mail enhancement path to the intended recipient. In one feature, the path taken by an incoming e-mail message is different from an outgoing path taken by an e-mail message sent from the first user group. The outgoing path defined to the intended recipient includes the enhancement path.

Abstract: In a computer network system based on an open system interconnection model, where the computer network system includes at least a network layer (Layer 3) and an application layer (Layer 7), a system and a method for managing electronic message traffic into and out of the computer network system including defining a communication channel between Layer 3 and Layer 7 for exchanging data directly therebetween for use in enhancing flow of the electronic message traffic.

Abstract: In a computer network system based on an open system interconnection model, where the computer network system includes at least a network layer (Layer 3) and an application layer (Layer 7), a system and a method for managing electronic message traffic into and out of the computer network system including defining a communication channel between Layer 3 and Layer 7 for exchanging data directly therebetween for use in enhancing flow of the electronic message traffic.

Abstract: A multi-user e-mail messaging system is described that is interfaced through the Internet and includes a first user group sharing a first server, which first server is interfaced to the Internet. In this system, after an e-mail message has been originated by an originating user of the first user group, the e-mail message is directed onto an e-mail enhancement path, and additional content is added to the e-mail message using the e-mail enhancement path to produce an enhanced e-mail message. Thereafter, the enhanced e-mail message from the e-mail enhancement path to the intended recipient. In one feature, the path taken by an incoming e-mail message is different from an outgoing path taken by an e-mail message sent from the first user group. The outgoing path defined to the intended recipient includes the enhancement path.

Abstract: In a messaging system interfaced through the Internet, a method for processing a message from a sender and intended for delivery to at least one recipient, which sender is interfaced to the Internet through a sender server and which recipient is interfaced to the Internet through a recipient server, where the message includes at least recipient information and message body, is disclosed. The method includes testing the recipient information by establishing a temporary test connection through the Internet from the sender server to the recipient server, before relying on the recipient information for sending the message, so as to provide an indication of deliverability of the message to the recipient without using an SMTP VRFY command.

Abstract: A multi-user e-mail messaging system is described that is interfaced through the Internet and includes a first user group sharing a first server, which first server is interfaced to the Internet. In this system, after an e-mail message has been originated by an originating user of the first user group, the e-mail message is directed onto an e-mail enhancement path, and additional content is added to the e-mail message using the e-mail enhancement path to produce an enhanced e-mail message. Thereafter, the enhanced e-mail message from the e-mail enhancement path to the intended recipient. In one feature, the path taken by an incoming e-mail message is different from an outgoing path taken by an e-mail message sent from the first user group. The outgoing path defined to the intended recipient includes the enhancement path.

Abstract: A multi-user e-mail messaging system is described that is interfaced through the Internet and includes a first user group sharing a first server, which first server is interfaced to the Internet. In this system, after an e-mail message has been originated by an originating user of the first user group, the e-mail message is directed onto an e-mail enhancement path, and additional content is added to the e-mail message using the e-mail enhancement path to produce an enhanced e-mail message. Thereafter, the enhanced e-mail message from the e-mail enhancement path to the intended recipient. In one feature, the path taken by an incoming e-mail message is different from an outgoing path taken by an e-mail message sent from the first user group. The outgoing path defined to the intended recipient includes the enhancement path.