Securing email communications

Patent metadata

Field	Value
Publication number	US-9130989-B2
Application number	US-201414558939-A
Country	US
Kind code	B2
Filing date	Dec 3, 2014
Priority date	May 3, 2013
Publication date	Sep 8, 2015
Grant date	Sep 8, 2015

Abstract

Methods and systems are provided for securing email communications. According to one embodiment, a network device receives an outbound email originated by a computing device of an internal network and directed to a target recipient. It is determined whether a domain name of the target recipient is present in a global doppelganger database. When the domain name is determined to be present in the global doppelganger database, transmission of the outbound email to the target recipient is prevented if the domain name is an unacceptable domain name and transmission of the outbound email to the target recipient is permitted if the domain name is an acceptable domain name.

First claim

What is claimed is:

1. A method for securing electronic mail (email) communications comprising:
receiving, by a network device, an outbound email originated by a computing device of an internal network and directed to a target recipient;
determining, by the network device, whether a domain name of the target recipient is present in a global doppelganger database;
when the domain name is determined to be present in the global doppelganger database, preventing transmission of th…

Assignees

• Fortinet Inc

Inventors

• Windsor Carl M
• Cheng Jiandong

Classifications

• G06F17/30876

  Physics · mapped topic

• H04L63/1408

  Electricity · mapped topic

• H04L63/1441 Primary

  Electricity · mapped topic

• H04L63/101

  Electricity · mapped topic

• H04L51/12

  Electricity · mapped topic