Patent · US Active

SMTP network security processing in a transparent relay in a computer network

US7926108B2 · kind B2 · utility

32Cited by

6References

12Claims

0Family size

Assignee

Trend Micro Incorporated · JP

Inventors

David Rand · Kihei, US
Scott D. Esters · San Francisco, US
Paul Moriarty · San Jose, US
Gerald Scharf · Hattersheim, DE

Key dates

Filing date	Nov 17, 2006
Grant date	Apr 12, 2011
Priority date	—
Expiry date	Apr 2, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH04L51/212
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

In one embodiment, a transparent relay receives diverted e-mail communications between an e-mail client and an e-mail server. The transparent relay may be configured to examine the e-mail communications for network security policy violations. E-mail communications that do not violate a network security policy may be relayed to their intended destination. Policy actions, such as discarding or redirection, may be performed on those that violate one or more network security policies. The transparent relay may include a pair of communications interfaces running in promiscuous mode, one for downstream communications and another for upstream communications. The transparent relay may decompose a network communication protocol to look network security policy violations.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.