On July 8 2003, yet another spam-related patent was issued in the US:
This system describes yet another method of generating and using "single
user" email addresses.
US Patent 6,591,291
http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6574658
System and method for providing anonymous remailing and filtering of
electronic mail
A system for, and method of, generating an alias source address for an
electronic mail ("e-mail") message having a real source address and a
destination address and a computer network, such as the Internet,
including the system or the method. In one embodiment, the system
includes an alias source address generator that employs the destination
address to generate the alias source address. The system further
includes an alias source address substitutor that substitutes the alias
source address for the real source address. This removes the real source
address from the e-mail message and thereby renders the sender, located
at the real source address, anonymous. Further-described are systems and
methods for forwarding reply e-mail and filtering reply e-mail based on
alias source address.
Inventors: Gabber; Eran (Summit, NJ); Gibbons; Phillip B. (Westfield,
NJ); Kristol; David Morris (Summit, NJ); Matias; Yossi (Potomac, MD);
Mayer; Alain J. (New York, NY)
Assignee: Lucent Technologies Inc. (Murray Hill, NJ) Filed: March 12,
1998
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