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US 2006/0242251 A1Published application
Method and system for filtering spoofed electronic messages
OwnerLuis Estableinventor
Life of this patent
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Abstract
Methods of detecting e-mail messages that are spoofed to appear from internal to a private network are provided. The methods involve examining the header of messages to determine if they purport to originate from internal to the network when in fact they originate external to the network. The presence of an Internet header can be used to this effect in private networks that do not use Internet headers to exchange internal email.
Claims20
A spoofed email filter adapted to process email messages for a private network, the spoofed email filter comprising:
- an input for receiving email messages before their delivery to email clients, at least some of the email messages having Internet headers;
- an output for forwarding messages after being processed;
- the spoofed email filter being adapted to process each email message to determine if the email message has been spoofed or not using email message headers and subjecting each email message that has been spoofed to special processing.
A method comprising:
- receiving e-mail messages for a private network before their delivery to email clients, at least some of the messages having Internet headers;
- processing each email message to determine if the email message has been spoofed to appear to originate from the private network or not using email message headers;
- subjecting each email message that has been spoofed to special processing.
Dependencies are inferred from the claim text.