Network domain reputation-based spam filtering
First Claim
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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, the status of the email determined to be at least one of spam email or not spam email.
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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.
97 Citations
20 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, the status of the email determined to be at least one of spam email or not spam email. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. 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. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. One or more computer readable media comprising computer executable instructions that, when executed, direct 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. - View Dependent Claims (18, 19, 20)
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Specification