Network domain reputation-based spam filtering
First Claim
Patent Images
1. An email system, comprising:
- an email server configured to receive emails from a network domain; and
a spam filter configured to determine a status of an email based on a reputation of the network domain and a message feature of the email, the status of the email determined to be at least one of spam email or not spam email,wherein the message feature includes at least one of the following;
the size of the email, number of recipients, time of day, or day of the week.
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Abstract
Network domain reputation-based spam filtering is described. In an embodiment, emails are received from a network domain and a reputation of the network domain is established. Additional emails are filtered as they are received to determine a status of each email as spam email or not spam email. An email can be determined to be a spam email based on any one or more of the reputation of the network domain, an authentication status of an email, and other information that can be derived from an email.
53 Citations
19 Claims
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1. An email system, comprising:
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an email server configured to receive emails from a network domain; and a spam filter configured to determine a status of an email based on a reputation of the network domain and a message feature of the email, the status of the email determined to be at least one of spam email or not spam email, wherein the message feature includes at least one of the following;
the size of the email, number of recipients, time of day, or day of the week. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method, comprising:
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receiving emails from a network domain; establishing a reputation of the network domain based on an authentication determination of each of the emails received from the network domain; receiving additional emails from the network domain; and filtering the additional emails to determine a status of each email as spam email or not spam email based on the reputation of the network domain and a message feature of the email, wherein the message feature includes at least one of the following;
the size of the email, number of recipients, time of day, or day of the week. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. One or more computer readable storage media comprising computer executable instructions that, when executed by a processor, directs a spam email filter to:
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establish a reputation of a network domain based on an authentication determination of emails received from the network domain; receive one or more additional emails from the network domain; and filter an additional email received from the network domain to determine a status of the email based on the reputation of the network domain and a message feature of the email, wherein the message feature includes at least one of the following;
the size of the email, number of recipients, time of day, or day of the week. - View Dependent Claims (17, 18, 19)
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Specification