MESSAGE FILTERING METHOD
First Claim
Patent Images
1. A method comprising:
- determining, by a computing device, sender information for an electronic mail message, wherein the sender information comprises a domain name within the sender'"'"'s email address and an originating IP address for at least one of the servers transmitting the electronic mail message;
determining one or more permitted users of at least a portion of the domain name;
determining one or more permitted users of the originating IP address;
comparing, by the computing device, the permitted users of the at least one portion of the domain name with the permitted users of the originating IP address; and
providing an indication of likelihood that the mail message constitutes spam based on at least said comparing, wherein the indication indicates a higher likelihood that the mail message constitutes spam if such permitted users do not match.
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Abstract
A message filtering method makes use of a database in which domain names of a network, such as the Internet, are associated with IP addresses, or with geographic locations. Electronic messages are tested for authenticity by comparing domain names and IP addresses for a message being tested with information in the database. If the sender information in the message does not have the same associations as information in the database, the message may be blocked, flagged as spam, or subjected to further filtering.
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Citations
12 Claims
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1. A method comprising:
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determining, by a computing device, sender information for an electronic mail message, wherein the sender information comprises a domain name within the sender'"'"'s email address and an originating IP address for at least one of the servers transmitting the electronic mail message; determining one or more permitted users of at least a portion of the domain name; determining one or more permitted users of the originating IP address; comparing, by the computing device, the permitted users of the at least one portion of the domain name with the permitted users of the originating IP address; and providing an indication of likelihood that the mail message constitutes spam based on at least said comparing, wherein the indication indicates a higher likelihood that the mail message constitutes spam if such permitted users do not match. - View Dependent Claims (2, 3, 4)
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5. A tangible computer-readable medium storing instructions thereon, wherein the instructions are readable by a computing device in order to cause the computing device to perform operations comprising:
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determining a domain name associated with a sender'"'"'s address of an electronic message; determining an originating IP address for at least one server associated with transmission of the electronic message; determining an owner of a range of IP addresses including the originating IP address; comparing the domain name to the owner in order to generate a likelihood that the domain name is associated with the owner; and based on said comparing, providing an indication of a likelihood that the electronic message includes spam. - View Dependent Claims (6, 7, 8)
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9. A computing system comprising:
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a processing unit configured to execute software instructions; a computer readable medium storing software instructions for execution by the processing unit in order to cause the computing system to perform operations comprising; determining sender information for an electronic message, wherein the sender information comprises a domain name associated with a sender of the electronic message and an originating IP address associated with at least one server involved in transmission of the electronic message; determining one or more permitted users of at least a portion of the domain name; determining one or more permitted users of the originating IP address; comparing the permitted users of the at least one portion of the domain name with the permitted users of the originating IP address; and providing an indication of likelihood that the electronic message constitutes spam based on at least said comparing, wherein the indication indicates a higher likelihood that the electronic message constitutes spam if such permitted users do not match. - View Dependent Claims (10, 11, 12)
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Specification