Email authentication system
First Claim
Patent Images
1. A computer-based system for preventing the transmission of an email to a user, comprising:
- an authenticating server which receives said email from a sender, wherein said server associates a list of two or more keyed addresses with said user, and wherein said email has a “
from”
address and a “
to”
address;
a means for determining a subset of said list of keyed addresses which match said “
to”
address;
a set of rules defining whether said “
from”
address is acceptable for sending email addressed to any of said subset of matching keyed addresses; and
a means for rejecting said email based on said set of rules.
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Accused Products
Abstract
A method and system for reliably authenticating incoming email is provided, so that only desirable email is delivered to a recipient. The method and system comprise a server that intercepts incoming emails, authenticates them on behalf of the intended recipient, and then either makes them available to the recipient if they are desirable, or discards them if they are not. The invention provides a robust and reliable system for preventing unsolicited emails, commonly known as junk or spam, from reaching end users.
140 Citations
34 Claims
-
1. A computer-based system for preventing the transmission of an email to a user, comprising:
-
an authenticating server which receives said email from a sender, wherein said server associates a list of two or more keyed addresses with said user, and wherein said email has a “
from”
address and a “
to”
address;
a means for determining a subset of said list of keyed addresses which match said “
to”
address;
a set of rules defining whether said “
from”
address is acceptable for sending email addressed to any of said subset of matching keyed addresses; and
a means for rejecting said email based on said set of rules. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27. A method for preventing the transmission of an email to a user, wherein said email has a “
- from”
address and a “
to”
address, comprising the steps of;
maintaining a list of at least two keyed addresses for said user, wherein each said keyed address is associated with a set of rules defining which “
from”
addresses are acceptable for sending email to said keyed address;
matching said “
to”
address against said list of keyed addresses; and
rejecting said email if said “
from”
address is not acceptable for sending email to said “
to”
address. - View Dependent Claims (28, 29, 30, 31, 32, 33)
- from”
-
34. A computer-based system for transmitting an email, having a “
- to”
address and a “
from”
address, to a user, comprising;
a server which receives said email;
a username which said server associates with said user;
a list of two or more keyed addresses which said server associates with said user, wherein each said keyed address begins with said username, followed by a delimiting character, followed by a key part unique to each of said keyed addresses; and
a set of rules which specify whether said “
from”
address is acceptable for sending email addressed to any of said keyed addresses;
wherein said server transmits said email only if said rules specify that said “
from”
address is acceptable for sending said email to said “
to”
address.
- to”
Specification