07849142 is referenced by 47 patents and cites 189 patents.

A method and apparatus for managing connections, email messages, and directory harvest attacks at a server is disclosed. The server maintains a count of a parameter and compares the count to a specified maximum value, such that when the specified maximum value is met or exceeded, an action is taken by the server to limit the connections, email messages, or directory harvest attack. Actions include controlling the number of connections to the server from senders, controlling the flow of email messages injected to the server by senders, and controlling when rejection response messages are sent for invalid recipient email addresses to thwart a directory harvest attack. Senders are identified by one or more sender identifiers, which can be used to group senders together so that the same maximum value is applied collectively to all senders in the group.

Title
Managing connections, messages, and directory harvest attacks at a server
Application Number
11/139114
Publication Number
7849142 (B2)
Application Date
May 27, 2005
Publication Date
December 7, 2010
Inventor
Daniel Quinlan
San Bruno
CA, US
Robert Brahms
San Ramon
CA, US
Shun Chen
Union City
CA, US
Peter Schlampp
San Francisco
CA, US
Krishna Srinivasan
San Bruno
CA, US
Craig Sprosts
San Francisco
CA, US
Eric C Huss
San Francisco
CA, US
Paul J Clegg
Pacifica
CA, US
Agent
Hickman Palermo Truong & Becker
Assignee
Ironport Systems
CA, US
IPC
G06F 15/16
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