Blocking of spam e-mail at a firewall

A method of blocking spam at a firewall involves applying blocking measures for an adaptively determined duration. The blocking measure is then suspended while determining whether the spam has ended. If so, the method resets to an initial state. Otherwise, the blocking measure is re-applied for a se...

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Bibliographische Detailangaben
Hauptverfasser: JEREMIAH GARRETH JOSEPH, JEFFRIES CLARK DEBS, HIMBERGER KEVIN DAVID, DAVIS JOHN FRED
Format: Patent
Sprache:eng
Schlagworte:
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Zusammenfassung:A method of blocking spam at a firewall involves applying blocking measures for an adaptively determined duration. The blocking measure is then suspended while determining whether the spam has ended. If so, the method resets to an initial state. Otherwise, the blocking measure is re-applied for a second duration.