System, method and computer readable medium for processing unsolicited electronic mail

Patent metadata

Field	Value
Publication number	US-8996640-B2
Application number	US-201414211399-A
Country	US
Kind code	B2
Filing date	Mar 14, 2014
Priority date	Dec 28, 2006
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

An internet service provider (ISP) is configured to analyze a subscriber's sent e-mail packets to determine a subscriber identity associated with the e-mail packets. A database is then queried to determine a current sending rate of e-mails by the subscriber. A sending rate above an allowed threshold causes the upstream transmission of the e-mail packets to be blocked by injecting connection destroying packets. A subscriber remains blocked from upstream transmission of e-mails until the sending rate as determined by the ISP drops below a second, more stringent threshold. This automatic process is also accompanied by automated messaging to the subscriber with information as to the measures taken and remedial options.

First claim

What is claimed is:

1. A method, comprising:
determining if a subscriber associated with an electronic mail message at a point on a transmission path is a blocked subscriber;
if said subscriber is a blocked subscriber, preventing transmission of said electronic mail message from said point, wherein a sending rate profile indicates whether the subscriber is currently blocked from transmitting electronic mail messages based on determining whether the subscriber has attempted to tr…

Assignees

• Perftech Inc

Inventors

• Schmidt Jonathan E
• Murphy John A
• Donzis Henry M
• Donzis Lewis T
• Baron Peter W
• Frey Rodney D

Classifications

• H04L63/126 Primary

  Electricity · mapped topic

• H04L63/123

  Electricity · mapped topic

• H04L63/06

  Electricity · mapped topic

• G06F16/9566

  Physics · mapped topic

• H04L67/306

  Electricity · mapped topic