System and method for identifying spoofed email by modifying the sender address

a technology of sending address and spoofed email, applied in the field of electronic messaging, can solve the problems of billions of unwanted email messages, which are not tenable and millions of people who use email are overwhelmed by them

Inactive Publication Date: 2009-04-30
HCL TECH LTD
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Substantially prevents external senders from falsely claiming internal origin, reducing the likelihood of opening harmful emails and allowing legitimate communication while marking suspicious emails, thus enhancing email security within a network.

Problems solved by technology

With the growth of the Internet, however, those assumptions have proven not to be tenable, and there is now a large industry of spammers—people who send unsolicited email to millions of recipients in the hopes of getting them to read the email and respond to it.
At present, the millions of people who use email are being overwhelmed by billions of unwanted email messages.
Surveys show spam now accounts for about half of all email and frequently includes messages that are fraudulent or pornographic.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • System and method for identifying spoofed email by modifying the sender address
  • System and method for identifying spoofed email by modifying the sender address
  • System and method for identifying spoofed email by modifying the sender address

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

1. Introduction

[0023]The present invention, according to a preferred embodiment, overcomes problems with the prior art by providing an efficient and easy-to-implement method for identifying spoofed email. The present invention makes it extremely difficult, if not impossible, for a malicious sender outside of a network, company, Internet domain, Intranet or enterprise to pretend to be a user within that network, so as to make it less likely that a recipient will open harmful or spam email based on the apparent sender. The present invention substantially prevents senders outside of a network from sending email to recipients within that network while falsely claiming that the email originated within the network. Such spoofed email is processed to indicate its external origin before it is received by the intended recipient. Preferably, the system still allows the recipient to reply to the sender.

2. Overview of the System

[0024]FIG. 1 is a block diagram illustrating the process of receivi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A system, method and computer program product are provided for identifying spoofed emails. According to the method, an email addressed to a recipient in a first network is received, with the email including a plurality of headers, and at least one of the plurality of headers including a sender address. It is determined whether the sender address indicates a mailbox from within the first network, and the sender address is modified if it indicates a mailbox within the first network. The email with the modified sender address is sent to the recipient. In one embodiment, a second email is received that is from the recipient and that is addressed to the modified sender address, the modified sender address is modified so as to return it to its original form, and the second email is sent.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This is a continuation of application Ser. No. 10 / 754,220, filed Jan. 9, 2004, now Ser. No. ______. The entire disclosure of prior application Ser. No. 10 / 754,220 is herein incorporated by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]This invention generally relates to the field of electronic messaging and more specifically to the identification of spoofed electronic messages.[0004]2. Description of Related Art[0005]Internet electronic mail (email) was created in an environment where there were relatively few users of the system, most of whom were known to one another (either directly or through a very short chain of acquaintances), and where it was reasonable to be able to trust information supplied by other users (for example, the user's name and email address). With the growth of the Internet, however, those assumptions have proven not to be tenable, and there is now a large industry of spammers—people who ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityApplications(United States)
IPC IPC(8): G06F15/16H04L12/58
CPCH04L51/28H04L51/12H04L51/212H04L51/48
InventorSINGER, DAVID S.
OwnerHCL TECH LTD