Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Having particular address related cryptography
Reexamination Certificate
2003-03-31
2010-10-26
Moazzami, Nasser G (Department: 2436)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Having particular address related cryptography
C713S154000, C709S206000, C709S238000
Reexamination Certificate
active
07822977
ABSTRACT:
A system for eliminating unauthorized email sent to a user on a network analyzes the sender address of incoming email and determines whether it is to be rejected by returning a standard “no such user” error code or accepted depending upon executing processing rules and analyzing managed lists of authorized senders. This provides an advantage over existing anti-spam filtering systems by intercepting unauthorized email before it reaches an existing email server or client. The system rejects all email unless authorized by using a standard “no such user” error code, and by redirecting the unauthorized email back to the sender or to a sender evaluation site. An ASL module captures authorized sender addresses from the user's outgoing email and other sources in order to update “authorized senders” lists. The system may employ a WBM procedure that notifies senders of rejected email to go to a separate website and register as valid senders after passing an interaction test that precludes automatic registration by a mechanical program. A destination proxy email address procedure allows subscribers to use temporary proxy addresses for receiving email expected from unknown sources and instantiates senders as authorized upon receiving the expected email to the proxy addresses. The unauthorized-email rejection component can be readily configured as a hardware or software appliance used in tandem with a conventional email server, email gateway, or firewall to an intranet, or as a software extension to an existing firewall system.
REFERENCES:
patent: 5930479 (1999-07-01), Hall
patent: 5931905 (1999-08-01), Hashimoto
patent: 5944787 (1999-08-01), Zoken
patent: 6052709 (2000-04-01), Paul
patent: 6073142 (2000-06-01), Geiger et al.
patent: 6101531 (2000-08-01), Eggleston et al.
patent: 6112227 (2000-08-01), Heiner
patent: 6195698 (2001-02-01), Lillibridge
patent: 6199102 (2001-03-01), Cobb
patent: 6230188 (2001-05-01), Marcus
patent: 6249805 (2001-06-01), Fleming, III
patent: 6266692 (2001-07-01), Greenstein
patent: 6321267 (2001-11-01), Donaldson
patent: 6366950 (2002-04-01), Scheussler et al.
patent: 6615348 (2003-09-01), Gibbs
patent: 6643687 (2003-11-01), Dickie et al.
patent: 6671718 (2003-12-01), Meister et al.
patent: 6732101 (2004-05-01), Cook
patent: 6868498 (2005-03-01), Katsikas
patent: 7092992 (2006-08-01), Yu
patent: 2002/0120748 (2002-08-01), Schiavone et al.
patent: 2005/0188045 (2005-08-01), Katsikas
patent: 2317793 (1998-04-01), None
patent: 11068828 (1999-09-01), None
patent: WO 9910817 (1999-03-01), None
patent: WO 9937066 (1999-07-01), None
Mail Utilities, “ClikVU Debuts E-Mail Service to Filter Spam”, press release dated Feb. 14, 2001, publ. at http://www.mailutilities.com
ews/archive/32/319.html.
Infoworld, “SpamCon: ISPs Fight Spam From The Front Line” news article published May 25, 2001 at http://article.infoworld.com/articles/hn/xml/01/05/25/010525hnspamcon.xml.
TMDA, “TMDA History”, article dated 2001-2004, refers to first release of TMDA software in Apr. 2001, publ. at http://www.tmda.net/history.html.
CVS.SOURCEFORGE.NET, “Spam Filtering ESMTP Demon”, copyright notice dated 2000, publ. at http://cvs.sourceforge.net/viewscvs.py/clocc/clocc/src/donc/smtp.lisp?rev=1.4.
Official Sep. 1999 AUP (Auto Update Program) v5.0 Build 447, Product Update Release, winserver.com.
WebHabitat White Paper, John Swanson, Spam-Lion Registered Email, pp. 1-12, 2001-2002, Web Habitat, Inc.
Spam Arrest FAQ, 2003, Spam Arrest, LLC, http://spamarrest.com/faq/.
Quik Cop FAQ, 2002, Quik Internet, http://q6.quik.com/quikcop—faq.html.
Mail Wiper Website, 2002-2003, Mail Wiper Inc., http://www.mailwiper.com.
Mail Blocks Features/Benefits, 2003, Mailblocks Inc., http://about.mailblocks.com/features.html.
ChoiceMail One FAQ, 2001-2003, DigiPortal Software, Inc., http://www.digiportal.com/support/choicemail/faq.html.
Bounce Spam Mail, Albert Yale Software, dated 1997-2000.
CSM Internet Mail Scanner, CSM-USA, Inc., dated 1999.
CyberSitter AntiSpam, CyberSitter.com, distributed by Solid Oak Software, circa 1999-2000.
DL MailFilter, DeadLetter and Leem Han Cheong, Nov. 1999.
E-Mail Chomper, from Lorenzo Pasqualis, 1996-1997.
E-Mail Remover, Victor Javier, Virtual Network, Inc., Singapore, dated Mar.-Jul. 1998, and 1999.
FlameThrower, Eagle Research, Inc., 2000.
Interceptor, Grok Development Ltd., 1999-2000.
JOC E-Mail Checker, JOCSoft and Jose Olice Civit, dated 2000.
Lyris MailShield, Lyris, undated.
Quickhead-E, Danere Software Innovations, dated Mar. 2000.
Spam Attack Pro, softwiz.com, circa 1996-1997.
Spam Buster, Contact Plus Corp., dated 2000.
SpamEater, High Mountain Software, dated 1997-2000.
SpamKiller, NovaSoft, dated 1997-2000.
BrightMail, BrightMail, Inc., 2000.
Praetor, Computer Mail Services, Inc., circa 1998-1999.
“MsgTo.com Stops Spam Email,” www.applesforheatlh.com, circa Nov. 19, 1999.
Needleman, R., “The Species Filter,” www.RedHerring.com, Aug. 6, 1999.
Moazzami Nasser G
Perkins Coie LLP
Reza Mohammad W
LandOfFree
System for eliminating unauthorized electronic mail does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for eliminating unauthorized electronic mail, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for eliminating unauthorized electronic mail will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4155637